16911132975 has 72 divisors (see below), whose sum is σ = 33069883392. Its totient is φ = 8192750400.

The previous prime is 16911132967. The next prime is 16911133003. The reversal of 16911132975 is 57923111961.

It is not a de Polignac number, because 16911132975 - 2³ = 16911132967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16911132975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4718034 + ... + 4721616.

It is an arithmetic number, because the mean of its divisors is an integer number (459303936).

Almost surely, 2^16911132975 is an apocalyptic number.

16911132975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16911132975 is a deficient number, since it is larger than the sum of its proper divisors (16158750417).

16911132975 is a wasteful number, since it uses less digits than its factorization.

16911132975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517 (or 5509 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The spelling of 16911132975 in words is "sixteen billion, nine hundred eleven million, one hundred thirty-two thousand, nine hundred seventy-five".