20312630441632 has 48 divisors (see below), whose sum is σ = 41846245873992. Its totient is φ = 9695370746880.

The previous prime is 20312630441573. The next prime is 20312630441633. The reversal of 20312630441632 is 23614403621302.

It can be written as a sum of positive squares in 4 ways, for example, as 20064343496976 + 248286944656 = 4479324^2 + 498284^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 20312630441591 and 20312630441600.

It is not an unprimeable number, because it can be changed into a prime (20312630441633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161785719 + ... + 161911222.

Almost surely, 2^{20312630441632} is an apocalyptic number.

It is an amenable number.

20312630441632 is an abundant number, since it is smaller than the sum of its proper divisors (21533615432360).

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

20312630441632 is a wasteful number, since it uses less digits than its factorization.

20312630441632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323697041 (or 323697033 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 20312630441632 in words is "twenty trillion, three hundred twelve billion, six hundred thirty million, four hundred forty-one thousand, six hundred thirty-two".