16261616164 has 12 divisors (see below), whose sum is σ = 28458814384. Its totient is φ = 8130526344.

The previous prime is 16261616159. The next prime is 16261616171. The reversal of 16261616164 is 46161616261.

It is a super-4 number, since 4×16261616164⁴ (a number of 42 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111847 + ... + 212209.

Almost surely, 2^16261616164 is an apocalyptic number.

It is an amenable number.

16261616164 is a deficient number, since it is larger than the sum of its proper divisors (12197198220).

16261616164 is a wasteful number, since it uses less digits than its factorization.

16261616164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140874 (or 140872 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The spelling of 16261616164 in words is "sixteen billion, two hundred sixty-one million, six hundred sixteen thousand, one hundred sixty-four".