655550656 has 14 divisors (see below), whose sum is σ = 1300858460. Its totient is φ = 327775296.

The previous prime is 655550653. The next prime is 655550659. The reversal of 655550656 is 656055556.

It is an interprime number because it is at equal distance from previous prime (655550653) and next prime (655550659).

It is not an unprimeable number, because it can be changed into a prime (655550653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5121426 + ... + 5121553.

Almost surely, 2^655550656 is an apocalyptic number.

It is an amenable number.

655550656 is a deficient number, since it is larger than the sum of its proper divisors (645307804).

655550656 is a wasteful number, since it uses less digits than its factorization.

655550656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242991 (or 10242981 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 43.

The square root of 655550656 is about 25603.7234792129. The cubic root of 655550656 is about 868.6978609152.

The spelling of 655550656 in words is "six hundred fifty-five million, five hundred fifty thousand, six hundred fifty-six".