659955072 has 64 divisors (see below), whose sum is σ = 2003443200. Its totient is φ = 188557824.

The previous prime is 659955067. The next prime is 659955073. The reversal of 659955072 is 270559956.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659955073) by changing a digit.

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, 120072 + ... + 125447.

It is an arithmetic number, because the mean of its divisors is an integer number (31303800).

Almost surely, 2^659955072 is an apocalyptic number.

It is an amenable number.

659955072 is an abundant number, since it is smaller than the sum of its proper divisors (1343488128).

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

659955072 is a wasteful number, since it uses less digits than its factorization.

659955072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245543 (or 245531 counting only the distinct ones).

The product of its (nonzero) digits is 850500, while the sum is 48.

The square root of 659955072 is about 25689.5907324348. The cubic root of 659955072 is about 870.6390126301.

The spelling of 659955072 in words is "six hundred fifty-nine million, nine hundred fifty-five thousand, seventy-two".