1002151555244 has 72 divisors (see below), whose sum is σ = 2117540880000. Its totient is φ = 413342092800.

The previous prime is 1002151555231. The next prime is 1002151555247. The reversal of 1002151555244 is 4425551512001.

It is not an unprimeable number, because it can be changed into a prime (1002151555247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644132 + ... + 1555380.

It is an arithmetic number, because the mean of its divisors is an integer number (29410290000).

Almost surely, 2^{1002151555244} is an apocalyptic number.

1002151555244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002151555244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058770440000).

1002151555244 is an abundant number, since it is smaller than the sum of its proper divisors (1115389324756).

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

1002151555244 is a wasteful number, since it uses less digits than its factorization.

1002151555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911479 (or 911470 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 1002151555244 in words is "one trillion, two billion, one hundred fifty-one million, five hundred fifty-five thousand, two hundred forty-four".