659967480 has 64 divisors (see below), whose sum is σ = 2199895200. Its totient is φ = 175991040.

The previous prime is 659967443. The next prime is 659967491. The reversal of 659967480 is 84769956.

659967480 is a `hidden beast` number, since 6 + 599 + 6 + 7 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304461 + ... + 306620.

Almost surely, 2^659967480 is an apocalyptic number.

659967480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

659967480 is an abundant number, since it is smaller than the sum of its proper divisors (1539927720).

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

659967480 is a wasteful number, since it uses less digits than its factorization.

659967480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611101 (or 611091 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 659967480 is about 25689.8322298920. The cubic root of 659967480 is about 870.6444689718.

The spelling of 659967480 in words is "six hundred fifty-nine million, nine hundred sixty-seven thousand, four hundred eighty".