20507043522 has 32 divisors (see below), whose sum is σ = 46877668992. Its totient is φ = 5858601984.

The previous prime is 20507043517. The next prime is 20507043533. The reversal of 20507043522 is 22534070502.

It is a self number, because there is not a number n which added to its sum of digits gives 20507043522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677218 + ... + 706850.

It is an arithmetic number, because the mean of its divisors is an integer number (1464927156).

Almost surely, 2^20507043522 is an apocalyptic number.

20507043522 is an abundant number, since it is smaller than the sum of its proper divisors (26370625470).

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

20507043522 is a wasteful number, since it uses less digits than its factorization.

20507043522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46122.

The product of its (nonzero) digits is 16800, while the sum is 30.

The spelling of 20507043522 in words is "twenty billion, five hundred seven million, forty-three thousand, five hundred twenty-two".