20696526696 has 32 divisors (see below), whose sum is σ = 52470072000. Its totient is φ = 6801674880.

The previous prime is 20696526647. The next prime is 20696526757. The reversal of 20696526696 is 69662569602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6071221 + ... + 6074628.

It is an arithmetic number, because the mean of its divisors is an integer number (1639689750).

Almost surely, 2^20696526696 is an apocalyptic number.

It is an amenable number.

20696526696 is an abundant number, since it is smaller than the sum of its proper divisors (31773545304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20696526696 is a wasteful number, since it uses less digits than its factorization.

20696526696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145929 (or 12145925 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 57.

The spelling of 20696526696 in words is "twenty billion, six hundred ninety-six million, five hundred twenty-six thousand, six hundred ninety-six".