16591113925 has 12 divisors (see below), whose sum is σ = 20699200960. Its totient is φ = 13191459120.

The previous prime is 16591113911. The next prime is 16591113941. The reversal of 16591113925 is 52931119561.

It is not a de Polignac number, because 16591113925 - 2¹⁹ = 16590589637 is a prime.

It is a super-2 number, since 2×16591113925² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2031645 + ... + 2039794.

Almost surely, 2^16591113925 is an apocalyptic number.

It is an amenable number.

16591113925 is a deficient number, since it is larger than the sum of its proper divisors (4108087035).

16591113925 is a wasteful number, since it uses less digits than its factorization.

16591113925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071612 (or 4071607 counting only the distinct ones).

The product of its digits is 72900, while the sum is 43.

The spelling of 16591113925 in words is "sixteen billion, five hundred ninety-one million, one hundred thirteen thousand, nine hundred twenty-five".