655641960 has 32 divisors (see below), whose sum is σ = 1966926240. Its totient is φ = 174837824.

The previous prime is 655641937. The next prime is 655641989. The reversal of 655641960 is 69146556.

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, 2731722 + ... + 2731961.

It is an arithmetic number, because the mean of its divisors is an integer number (61466445).

Almost surely, 2^655641960 is an apocalyptic number.

655641960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655641960 is an abundant number, since it is smaller than the sum of its proper divisors (1311284280).

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

655641960 is a wasteful number, since it uses less digits than its factorization.

655641960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463697 (or 5463693 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 655641960 is about 25605.5064390455. The cubic root of 655641960 is about 868.7381893051.

It can be divided in two parts, 6556 and 41960, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 655641960 in words is "six hundred fifty-five million, six hundred forty-one thousand, nine hundred sixty".