216576026768 has 40 divisors (see below), whose sum is σ = 426992358240. Its totient is φ = 106400517120.

The previous prime is 216576026761. The next prime is 216576026831. The reversal of 216576026768 is 867620675612.

It is a super-2 number, since 2×216576026768² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (216576026761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286238 + ... + 717693.

It is an arithmetic number, because the mean of its divisors is an integer number (10674808956).

Almost surely, 2^216576026768 is an apocalyptic number.

It is an amenable number.

216576026768 is a deficient number, since it is larger than the sum of its proper divisors (210416331472).

216576026768 is a wasteful number, since it uses less digits than its factorization.

216576026768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004175 (or 1004169 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 216576026768 in words is "two hundred sixteen billion, five hundred seventy-six million, twenty-six thousand, seven hundred sixty-eight".