1406141666545 has 72 divisors (see below), whose sum is σ = 2157122318400. Its totient is φ = 870126324480.

The previous prime is 1406141666513. The next prime is 1406141666653. The reversal of 1406141666545 is 5456661416041.

It is not a de Polignac number, because 1406141666545 - 2⁵ = 1406141666513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 50568556 + ... + 50596354.

It is an arithmetic number, because the mean of its divisors is an integer number (29960032200).

Almost surely, 2^{1406141666545} is an apocalyptic number.

It is an amenable number.

1406141666545 is a deficient number, since it is larger than the sum of its proper divisors (750980651855).

1406141666545 is a wasteful number, since it uses less digits than its factorization.

1406141666545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28103 (or 27959 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 1406141666545 in words is "one trillion, four hundred six billion, one hundred forty-one million, six hundred sixty-six thousand, five hundred forty-five".