20366072704 has 16 divisors (see below), whose sum is σ = 40573035720. Its totient is φ = 10183036288.

The previous prime is 20366072669. The next prime is 20366072711. The reversal of 20366072704 is 40727066302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×20366072704² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79554844 + ... + 79555099.

Almost surely, 2^20366072704 is an apocalyptic number.

It is an amenable number.

20366072704 is a deficient number, since it is larger than the sum of its proper divisors (20206963016).

20366072704 is an equidigital number, since it uses as much as digits as its factorization.

20366072704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159109957 (or 159109945 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 20366072704 in words is "twenty billion, three hundred sixty-six million, seventy-two thousand, seven hundred four".