20315518522 has 32 divisors (see below), whose sum is σ = 34421845248. Its totient is φ = 8922203136.

The previous prime is 20315518519. The next prime is 20315518547. The reversal of 20315518522 is 22581551302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27403 + ... + 203425.

It is an arithmetic number, because the mean of its divisors is an integer number (1075682664).

Almost surely, 2^20315518522 is an apocalyptic number.

20315518522 is a deficient number, since it is larger than the sum of its proper divisors (14106326726).

20315518522 is a wasteful number, since it uses less digits than its factorization.

20315518522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176254.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 20315518522 in words is "twenty billion, three hundred fifteen million, five hundred eighteen thousand, five hundred twenty-two".