21696011675 has 24 divisors (see below), whose sum is σ = 28989509136. Its totient is φ = 16012275840.

The previous prime is 21696011663. The next prime is 21696011731. The reversal of 21696011675 is 57611069612.

It is not a de Polignac number, because 21696011675 - 2²⁰ = 21694963099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 562097 + ... + 599453.

It is an arithmetic number, because the mean of its divisors is an integer number (1207896214).

Almost surely, 2^21696011675 is an apocalyptic number.

21696011675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21696011675 is a deficient number, since it is larger than the sum of its proper divisors (7293497461).

21696011675 is a wasteful number, since it uses less digits than its factorization.

21696011675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39167 (or 39162 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The spelling of 21696011675 in words is "twenty-one billion, six hundred ninety-six million, eleven thousand, six hundred seventy-five".