16472013776665 has 32 divisors (see below), whose sum is σ = 19996320960000. Its totient is φ = 13025201000448.

The previous prime is 16472013776663. The next prime is 16472013776681. The reversal of 16472013776665 is 56667731027461.

It is a cyclic number.

It is not a de Polignac number, because 16472013776665 - 2¹ = 16472013776663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16472013776663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1071203457 + ... + 1071218833.

It is an arithmetic number, because the mean of its divisors is an integer number (624885030000).

Almost surely, 2^{16472013776665} is an apocalyptic number.

It is an amenable number.

16472013776665 is a deficient number, since it is larger than the sum of its proper divisors (3524307183335).

16472013776665 is a wasteful number, since it uses less digits than its factorization.

16472013776665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22209.

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 16472013776665 in words is "sixteen trillion, four hundred seventy-two billion, thirteen million, seven hundred seventy-six thousand, six hundred sixty-five".