659995051 has 8 divisors (see below), whose sum is σ = 699981984. Its totient is φ = 620949120.

The previous prime is 659995043. The next prime is 659995067. The reversal of 659995051 is 150599956.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 659995051 - 2³ = 659995043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 659994986 and 659995004.

It is not an unprimeable number, because it can be changed into a prime (659995031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233806 + ... + 236611.

It is an arithmetic number, because the mean of its divisors is an integer number (87497748).

Almost surely, 2^659995051 is an apocalyptic number.

659995051 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

659995051 is a deficient number, since it is larger than the sum of its proper divisors (39986933).

659995051 is a wasteful number, since it uses less digits than its factorization.

659995051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470501.

The product of its (nonzero) digits is 546750, while the sum is 49.

The square root of 659995051 is about 25690.3688373678. The cubic root of 659995051 is about 870.6565929047.

The spelling of 659995051 in words is "six hundred fifty-nine million, nine hundred ninety-five thousand, fifty-one".