655464464556 has 24 divisors (see below), whose sum is σ = 1668455001024. Its totient is φ = 198625595280.

The previous prime is 655464464549. The next prime is 655464464569.

655464464556 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 655464464556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2482819810 + ... + 2482820073.

It is an arithmetic number, because the mean of its divisors is an integer number (69518958376).

Almost surely, 2^655464464556 is an apocalyptic number.

655464464556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

655464464556 is an abundant number, since it is smaller than the sum of its proper divisors (1012990536468).

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

655464464556 is a wasteful number, since it uses less digits than its factorization.

655464464556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965639901 (or 4965639899 counting only the distinct ones).

The product of its digits is 207360000, while the sum is 60.

The spelling of 655464464556 in words is "six hundred fifty-five billion, four hundred sixty-four million, four hundred sixty-four thousand, five hundred fifty-six".