1145641213440 has 120 divisors (see below), whose sum is σ = 3967677813528. Its totient is φ = 305504317440.

The previous prime is 1145641213399. The next prime is 1145641213477. The reversal of 1145641213440 is 443121465411.

1145641213440 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 641 + 2 + 1 + 3 + 4 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1145641213395 and 1145641213404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24838966 + ... + 24885045.

Almost surely, 2^{1145641213440} is an apocalyptic number.

1145641213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145641213440 is an abundant number, since it is smaller than the sum of its proper divisors (2822036600088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145641213440 is an equidigital number, since it uses as much as digits as its factorization.

1145641213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49724040 (or 49724021 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Adding to 1145641213440 its reverse (443121465411), we get a palindrome (1588762678851).

The spelling of 1145641213440 in words is "one trillion, one hundred forty-five billion, six hundred forty-one million, two hundred thirteen thousand, four hundred forty".