499669164 has 36 divisors (see below), whose sum is σ = 1297192624. Its totient is φ = 162054432.

The previous prime is 499669147. The next prime is 499669169. The reversal of 499669164 is 461966994.

499669164 is a `hidden beast` number, since 499 + 6 + 6 + 91 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 499669164.

It is not an unprimeable number, because it can be changed into a prime (499669169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186232 + ... + 188895.

Almost surely, 2^499669164 is an apocalyptic number.

It is an amenable number.

499669164 is an abundant number, since it is smaller than the sum of its proper divisors (797523460).

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

499669164 is a wasteful number, since it uses less digits than its factorization.

499669164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375174 (or 375169 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 499669164 is about 22353.2808330231. The cubic root of 499669164 is about 793.5254308884.

The spelling of 499669164 in words is "four hundred ninety-nine million, six hundred sixty-nine thousand, one hundred sixty-four".