20315636525032 has 16 divisors (see below), whose sum is σ = 38091868560900. Its totient is φ = 10157804908800.

The previous prime is 20315636524973. The next prime is 20315636525059. The reversal of 20315636525032 is 23052563651302.

It can be written as a sum of positive squares in 2 ways, for example, as 17934090037956 + 2381546487076 = 4234866^2 + 1543226^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20315636525032.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8296194 + ... + 10462222.

Almost surely, 2^{20315636525032} is an apocalyptic number.

It is an amenable number.

20315636525032 is a deficient number, since it is larger than the sum of its proper divisors (17776232035868).

20315636525032 is a wasteful number, since it uses less digits than its factorization.

20315636525032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338436 (or 3338432 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 43.

The spelling of 20315636525032 in words is "twenty trillion, three hundred fifteen billion, six hundred thirty-six million, five hundred twenty-five thousand, thirty-two".