20570023036 has 12 divisors (see below), whose sum is σ = 36014447560. Its totient is φ = 10280180880.

The previous prime is 20570023027. The next prime is 20570023037. The reversal of 20570023036 is 63032007502.

It is a junction number, because it is equal to n+sod(n) for n = 20570022995 and 20570023013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20570023037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1198071 + ... + 1215118.

Almost surely, 2^20570023036 is an apocalyptic number.

It is an amenable number.

20570023036 is a deficient number, since it is larger than the sum of its proper divisors (15444424524).

20570023036 is a wasteful number, since it uses less digits than its factorization.

20570023036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415324 (or 2415322 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The spelling of 20570023036 in words is "twenty billion, five hundred seventy million, twenty-three thousand, thirty-six".