20312444652216 has 32 divisors (see below), whose sum is σ = 50944394966400. Its totient is φ = 6749043772640.

The previous prime is 20312444652151. The next prime is 20312444652257. The reversal of 20312444652216 is 61225644421302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360686846 + ... + 1360701773.

It is an arithmetic number, because the mean of its divisors is an integer number (1592012342700).

Almost surely, 2^{20312444652216} is an apocalyptic number.

It is an amenable number.

20312444652216 is an abundant number, since it is smaller than the sum of its proper divisors (30631950314184).

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

20312444652216 is a wasteful number, since it uses less digits than its factorization.

20312444652216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721388939 (or 2721388935 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

The spelling of 20312444652216 in words is "twenty trillion, three hundred twelve billion, four hundred forty-four million, six hundred fifty-two thousand, two hundred sixteen".