31466622564 has 72 divisors (see below), whose sum is σ = 85783984832. Its totient is φ = 9667926720.

The previous prime is 31466622563. The next prime is 31466622601. The reversal of 31466622564 is 46522666413.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31466622563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274737 + ... + 372039.

Almost surely, 2^31466622564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31466622564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42891992416).

31466622564 is an abundant number, since it is smaller than the sum of its proper divisors (54317362268).

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

31466622564 is a wasteful number, since it uses less digits than its factorization.

31466622564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98017 (or 98012 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 45.

The spelling of 31466622564 in words is "thirty-one billion, four hundred sixty-six million, six hundred twenty-two thousand, five hundred sixty-four".