20312625533220 has 72 divisors (see below), whose sum is σ = 64857856976640. Its totient is φ = 5131610660160.

The previous prime is 20312625533209. The next prime is 20312625533257. The reversal of 20312625533220 is 2233552621302.

20312625533220 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 625 + 5 + 3 + 3 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2969678676 + ... + 2969685515.

It is an arithmetic number, because the mean of its divisors is an integer number (900803569120).

Almost surely, 2^{20312625533220} is an apocalyptic number.

20312625533220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312625533220 is an abundant number, since it is smaller than the sum of its proper divisors (44545231443420).

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

20312625533220 is a wasteful number, since it uses less digits than its factorization.

20312625533220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5939364225 (or 5939364220 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 20312625533220 in words is "twenty trillion, three hundred twelve billion, six hundred twenty-five million, five hundred thirty-three thousand, two hundred twenty".