20072708632 has 32 divisors (see below), whose sum is σ = 37759993200. Its totient is φ = 10003428864.

The previous prime is 20072708627. The next prime is 20072708633. The reversal of 20072708632 is 23680727002.

It is a happy number.

It is a super-2 number, since 2×20072708632² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20072708591 and 20072708600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20072708633) 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, 4103244 + ... + 4108132.

Almost surely, 2^20072708632 is an apocalyptic number.

It is an amenable number.

20072708632 is a deficient number, since it is larger than the sum of its proper divisors (17687284568).

20072708632 is a wasteful number, since it uses less digits than its factorization.

20072708632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475 (or 6471 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 20072708632 in words is "twenty billion, seventy-two million, seven hundred eight thousand, six hundred thirty-two".