20711698072 has 32 divisors (see below), whose sum is σ = 41828850000. Its totient is φ = 9557610624.

The previous prime is 20711698067. The next prime is 20711698097. The reversal of 20711698072 is 27089611702.

It is a congruent number.

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, 766618 + ... + 793174.

Almost surely, 2^20711698072 is an apocalyptic number.

It is an amenable number.

20711698072 is an abundant number, since it is smaller than the sum of its proper divisors (21117151928).

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

20711698072 is a wasteful number, since it uses less digits than its factorization.

20711698072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34075 (or 34071 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 20711698072 in words is "twenty billion, seven hundred eleven million, six hundred ninety-eight thousand, seventy-two".