655883388556 has 48 divisors (see below), whose sum is σ = 1254489132960. Its totient is φ = 297570240000.

The previous prime is 655883388551. The next prime is 655883388649.

It is a happy number.

655883388556 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (655883388551) 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, 66239206 + ... + 66249106.

It is an arithmetic number, because the mean of its divisors is an integer number (26135190270).

Almost surely, 2^655883388556 is an apocalyptic number.

It is an amenable number.

655883388556 is a deficient number, since it is larger than the sum of its proper divisors (598605744404).

655883388556 is a wasteful number, since it uses less digits than its factorization.

655883388556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586 (or 12584 counting only the distinct ones).

The product of its digits is 829440000, while the sum is 70.

The spelling of 655883388556 in words is "six hundred fifty-five billion, eight hundred eighty-three million, three hundred eighty-eight thousand, five hundred fifty-six".