16709972597 has 16 divisors (see below), whose sum is σ = 17471417472. Its totient is φ = 15965709120.

The previous prime is 16709972551. The next prime is 16709972599. The reversal of 16709972597 is 79527990761.

It is a cyclic number.

It is not a de Polignac number, because 16709972597 - 2²⁰ = 16708924021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16709972599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1454558 + ... + 1466000.

It is an arithmetic number, because the mean of its divisors is an integer number (1091963592).

Almost surely, 2^16709972597 is an apocalyptic number.

It is an amenable number.

16709972597 is a deficient number, since it is larger than the sum of its proper divisors (761444875).

16709972597 is a wasteful number, since it uses less digits than its factorization.

16709972597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12188.

The product of its (nonzero) digits is 15002820, while the sum is 62.

The spelling of 16709972597 in words is "sixteen billion, seven hundred nine million, nine hundred seventy-two thousand, five hundred ninety-seven".