20315444164460 has 12 divisors (see below), whose sum is σ = 42662432745408. Its totient is φ = 8126177665776.

The previous prime is 20315444164427. The next prime is 20315444164481. The reversal of 20315444164460 is 6446144451302.

It is a happy number.

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, 507886104092 + ... + 507886104131.

It is an arithmetic number, because the mean of its divisors is an integer number (3555202728784).

Almost surely, 2^{20315444164460} is an apocalyptic number.

20315444164460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20315444164460 is an abundant number, since it is smaller than the sum of its proper divisors (22346988580948).

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

20315444164460 is a wasteful number, since it uses less digits than its factorization.

20315444164460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015772208232 (or 1015772208230 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 20315444164460 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-four million, one hundred sixty-four thousand, four hundred sixty".