6662463612564 has 48 divisors (see below), whose sum is σ = 15644000469888. Its totient is φ = 2206793981568.

The previous prime is 6662463612547. The next prime is 6662463612569. The reversal of 6662463612564 is 4652163642666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662463612569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5538802 + ... + 6633494.

It is an arithmetic number, because the mean of its divisors is an integer number (325916676456).

Almost surely, 2^{6662463612564} is an apocalyptic number.

It is an amenable number.

6662463612564 is an abundant number, since it is smaller than the sum of its proper divisors (8981536857324).

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

6662463612564 is a wasteful number, since it uses less digits than its factorization.

6662463612564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097904 (or 1097902 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 57.

The spelling of 6662463612564 in words is "six trillion, six hundred sixty-two billion, four hundred sixty-three million, six hundred twelve thousand, five hundred sixty-four".