654945549456 has 60 divisors (see below), whose sum is σ = 1859738653136. Its totient is φ = 198468346560.

The previous prime is 654945549451. The next prime is 654945549463.

654945549456 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (654945549451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56377246 + ... + 56388861.

Almost surely, 2^654945549456 is an apocalyptic number.

654945549456 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

654945549456 is an abundant number, since it is smaller than the sum of its proper divisors (1204793103680).

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

654945549456 is a wasteful number, since it uses less digits than its factorization.

654945549456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112766140 (or 112766123 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 66.

The spelling of 654945549456 in words is "six hundred fifty-four billion, nine hundred forty-five million, five hundred forty-nine thousand, four hundred fifty-six".