655199556 has 24 divisors (see below), whose sum is σ = 1667781024. Its totient is φ = 198545280.

The previous prime is 655199549. The next prime is 655199603. The reversal of 655199556 is 655991556.

It is a junction number, because it is equal to n+sod(n) for n = 655199499 and 655199508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2481685 + ... + 2481948.

It is an arithmetic number, because the mean of its divisors is an integer number (69490876).

Almost surely, 2^655199556 is an apocalyptic number.

655199556 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

655199556 is an abundant number, since it is smaller than the sum of its proper divisors (1012581468).

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

655199556 is a wasteful number, since it uses less digits than its factorization.

655199556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963651 (or 4963649 counting only the distinct ones).

The product of its digits is 1822500, while the sum is 51.

The square root of 655199556 is about 25596.8661363066. The cubic root of 655199556 is about 868.5427474072.

The spelling of 655199556 in words is "six hundred fifty-five million, one hundred ninety-nine thousand, five hundred fifty-six".