20312651533344 has 96 divisors (see below), whose sum is σ = 53476747873920. Its totient is φ = 6751087257600.

The previous prime is 20312651533313. The next prime is 20312651533357. The reversal of 20312651533344 is 44333515621302.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 20312651533296 and 20312651533305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73864452 + ... + 74138940.

It is an arithmetic number, because the mean of its divisors is an integer number (557049457020).

Almost surely, 2^{20312651533344} is an apocalyptic number.

20312651533344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20312651533344 is an abundant number, since it is smaller than the sum of its proper divisors (33164096340576).

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

20312651533344 is a wasteful number, since it uses less digits than its factorization.

20312651533344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276754 (or 276746 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 20312651533344 in words is "twenty trillion, three hundred twelve billion, six hundred fifty-one million, five hundred thirty-three thousand, three hundred forty-four".