216609593596 has 48 divisors (see below), whose sum is σ = 421109136000. Its totient is φ = 96658280640.

The previous prime is 216609593527. The next prime is 216609593621. The reversal of 216609593596 is 695395906612.

It is a super-2 number, since 2×216609593596² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

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, 1861990 + ... + 1974898.

It is an arithmetic number, because the mean of its divisors is an integer number (8773107000).

Almost surely, 2^216609593596 is an apocalyptic number.

It is an amenable number.

216609593596 is a deficient number, since it is larger than the sum of its proper divisors (204499542404).

216609593596 is a wasteful number, since it uses less digits than its factorization.

216609593596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113722 (or 113720 counting only the distinct ones).

The product of its (nonzero) digits is 23619600, while the sum is 61.

The spelling of 216609593596 in words is "two hundred sixteen billion, six hundred nine million, five hundred ninety-three thousand, five hundred ninety-six".