655533243660 has 48 divisors (see below), whose sum is σ = 1835704394496. Its totient is φ = 174788740032.

The previous prime is 655533243623. The next prime is 655533243667. The reversal of 655533243660 is 66342335556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (655533243667) 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, 99712 + ... + 1149351.

It is an arithmetic number, because the mean of its divisors is an integer number (38243841552).

Almost surely, 2^655533243660 is an apocalyptic number.

655533243660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655533243660 is an abundant number, since it is smaller than the sum of its proper divisors (1180171150836).

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

655533243660 is a wasteful number, since it uses less digits than its factorization.

655533243660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257822 (or 1257820 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 48.

The spelling of 655533243660 in words is "six hundred fifty-five billion, five hundred thirty-three million, two hundred forty-three thousand, six hundred sixty".