16911638007 has 16 divisors (see below), whose sum is σ = 25668258048. Its totient is φ = 9803847680.

The previous prime is 16911637997. The next prime is 16911638017. The reversal of 16911638007 is 70083611961.

It is an interprime number because it is at equal distance from previous prime (16911637997) and next prime (16911638017).

It is not a de Polignac number, because 16911638007 - 2⁷ = 16911637879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16911638007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16911638017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11139978 + ... + 11141495.

It is an arithmetic number, because the mean of its divisors is an integer number (1604266128).

Almost surely, 2^16911638007 is an apocalyptic number.

16911638007 is a deficient number, since it is larger than the sum of its proper divisors (8756620041).

16911638007 is a wasteful number, since it uses less digits than its factorization.

16911638007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22281510.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 16911638007 in words is "sixteen billion, nine hundred eleven million, six hundred thirty-eight thousand, seven".