16400277802904 has 64 divisors (see below), whose sum is σ = 32253180480000. Its totient is φ = 7803122342400.

The previous prime is 16400277802903. The next prime is 16400277802957. The reversal of 16400277802904 is 40920877200461.

It is a happy number.

It is a super-2 number, since 2×16400277802904² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16400277802903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308243504 + ... + 308296704.

It is an arithmetic number, because the mean of its divisors is an integer number (503955945000).

Almost surely, 2^{16400277802904} is an apocalyptic number.

It is an amenable number.

16400277802904 is a deficient number, since it is larger than the sum of its proper divisors (15852902677096).

16400277802904 is a wasteful number, since it uses less digits than its factorization.

16400277802904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61848 (or 61844 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 16400277802904 in words is "sixteen trillion, four hundred billion, two hundred seventy-seven million, eight hundred two thousand, nine hundred four".