660567255 has 16 divisors (see below), whose sum is σ = 1061652480. Its totient is φ = 350720928.

The previous prime is 660567241. The next prime is 660567289. The reversal of 660567255 is 552765066.

It is a happy number.

It is not a de Polignac number, because 660567255 - 2⁴ = 660567239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95395 + ... + 102084.

It is an arithmetic number, because the mean of its divisors is an integer number (66353280).

Almost surely, 2^660567255 is an apocalyptic number.

660567255 is a deficient number, since it is larger than the sum of its proper divisors (401085225).

660567255 is a wasteful number, since it uses less digits than its factorization.

660567255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197710.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 660567255 is about 25701.5029716163. The cubic root of 660567255 is about 870.9081348311.

The spelling of 660567255 in words is "six hundred sixty million, five hundred sixty-seven thousand, two hundred fifty-five".