654631136456 has 64 divisors (see below), whose sum is σ = 1385422315200. Its totient is φ = 287251014400.

The previous prime is 654631136447. The next prime is 654631136477.

654631136456 is nontrivially palindromic in base 10.

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, 18384686 + ... + 18420258.

It is an arithmetic number, because the mean of its divisors is an integer number (21647223675).

Almost surely, 2^654631136456 is an apocalyptic number.

It is an amenable number.

654631136456 is an abundant number, since it is smaller than the sum of its proper divisors (730791178744).

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

654631136456 is a wasteful number, since it uses less digits than its factorization.

654631136456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42830 (or 42826 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 50.

The spelling of 654631136456 in words is "six hundred fifty-four billion, six hundred thirty-one million, one hundred thirty-six thousand, four hundred fifty-six".