20206653512 has 16 divisors (see below), whose sum is σ = 38160049200. Its totient is φ = 10030640400.

The previous prime is 20206653497. The next prime is 20206653521. The reversal of 20206653512 is 21535660202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9084614 + ... + 9086837.

It is an arithmetic number, because the mean of its divisors is an integer number (2385003075).

Almost surely, 2^20206653512 is an apocalyptic number.

It is an amenable number.

20206653512 is a deficient number, since it is larger than the sum of its proper divisors (17953395688).

20206653512 is a wasteful number, since it uses less digits than its factorization.

20206653512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18171596 (or 18171592 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20206653512 in words is "twenty billion, two hundred six million, six hundred fifty-three thousand, five hundred twelve".