20502660633 has 32 divisors (see below), whose sum is σ = 33733410816. Its totient is φ = 10786298688.

The previous prime is 20502660611. The next prime is 20502660653. The reversal of 20502660633 is 33606620502.

It is not a de Polignac number, because 20502660633 - 2⁸ = 20502660377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20502660594 and 20502660603.

It is not an unprimeable number, because it can be changed into a prime (20502660653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6516 + ... + 202602.

It is an arithmetic number, because the mean of its divisors is an integer number (1054169088).

Almost surely, 2^20502660633 is an apocalyptic number.

It is an amenable number.

20502660633 is a deficient number, since it is larger than the sum of its proper divisors (13230750183).

20502660633 is a wasteful number, since it uses less digits than its factorization.

20502660633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196493.

The product of its (nonzero) digits is 38880, while the sum is 33.

The spelling of 20502660633 in words is "twenty billion, five hundred two million, six hundred sixty thousand, six hundred thirty-three".