16131660215 has 16 divisors (see below), whose sum is σ = 21304701216. Its totient is φ = 11628288000.

The previous prime is 16131660197. The next prime is 16131660221. The reversal of 16131660215 is 51206613161.

It is not a de Polignac number, because 16131660215 - 2¹⁸ = 16131398071 is a prime.

It is a super-2 number, since 2×16131660215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291586 + ... + 1304015.

It is an arithmetic number, because the mean of its divisors is an integer number (1331543826).

Almost surely, 2^16131660215 is an apocalyptic number.

16131660215 is a deficient number, since it is larger than the sum of its proper divisors (5173041001).

16131660215 is a wasteful number, since it uses less digits than its factorization.

16131660215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595730.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 16131660215 in words is "sixteen billion, one hundred thirty-one million, six hundred sixty thousand, two hundred fifteen".