20706502530 has 64 divisors (see below), whose sum is σ = 57757639680. Its totient is φ = 4652693184.

The previous prime is 20706502463. The next prime is 20706502543. The reversal of 20706502530 is 3520560702.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823224 + ... + 848003.

It is an arithmetic number, because the mean of its divisors is an integer number (902463120).

Almost surely, 2^20706502530 is an apocalyptic number.

20706502530 is an abundant number, since it is smaller than the sum of its proper divisors (37051137150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20706502530 is a wasteful number, since it uses less digits than its factorization.

20706502530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671303.

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 20706502530 in words is "twenty billion, seven hundred six million, five hundred two thousand, five hundred thirty".