495501666 has 32 divisors (see below), whose sum is σ = 1082721600. Its totient is φ = 149926080.

The previous prime is 495501661. The next prime is 495501679. The reversal of 495501666 is 666105594.

It is not an unprimeable number, because it can be changed into a prime (495501661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41500 + ... + 52088.

It is an arithmetic number, because the mean of its divisors is an integer number (33835050).

Almost surely, 2^495501666 is an apocalyptic number.

495501666 is an abundant number, since it is smaller than the sum of its proper divisors (587219934).

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

495501666 is a wasteful number, since it uses less digits than its factorization.

495501666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11314.

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

The square root of 495501666 is about 22259.8667111912. The cubic root of 495501666 is about 791.3131320341.

It can be divided in two parts, 4955016 and 66, that multiplied together give a square (327031056 = 18084²).

The spelling of 495501666 in words is "four hundred ninety-five million, five hundred one thousand, six hundred sixty-six".