20620663036 has 24 divisors (see below), whose sum is σ = 36581860224. Its totient is φ = 10169502000.

The previous prime is 20620663033. The next prime is 20620663061. The reversal of 20620663036 is 63036602602.

It is a junction number, because it is equal to n+sod(n) for n = 20620662992 and 20620663010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620663033) 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, 3711 + ... + 203113.

It is an arithmetic number, because the mean of its divisors is an integer number (1524244176).

Almost surely, 2^20620663036 is an apocalyptic number.

It is an amenable number.

20620663036 is a deficient number, since it is larger than the sum of its proper divisors (15961197188).

20620663036 is a wasteful number, since it uses less digits than its factorization.

20620663036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199761 (or 199759 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

The spelling of 20620663036 in words is "twenty billion, six hundred twenty million, six hundred sixty-three thousand, thirty-six".