16259155944 has 16 divisors (see below), whose sum is σ = 40647889920. Its totient is φ = 5419718640.

The previous prime is 16259155943. The next prime is 16259155981. The reversal of 16259155944 is 44955195261.

It is a super-2 number, since 2×16259155944² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16259155943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338732392 + ... + 338732439.

It is an arithmetic number, because the mean of its divisors is an integer number (2540493120).

Almost surely, 2^16259155944 is an apocalyptic number.

It is an amenable number.

16259155944 is an abundant number, since it is smaller than the sum of its proper divisors (24388733976).

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

16259155944 is a wasteful number, since it uses less digits than its factorization.

16259155944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677464840 (or 677464836 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 51.

The spelling of 16259155944 in words is "sixteen billion, two hundred fifty-nine million, one hundred fifty-five thousand, nine hundred forty-four".