164099864 has 32 divisors (see below), whose sum is σ = 328579200. Its totient is φ = 76661760.

The previous prime is 164099863. The next prime is 164099867. The reversal of 164099864 is 468990461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164099863) 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, 4217 + ... + 18600.

It is an arithmetic number, because the mean of its divisors is an integer number (10268100).

Almost surely, 2^164099864 is an apocalyptic number.

It is an amenable number.

164099864 is an abundant number, since it is smaller than the sum of its proper divisors (164479336).

164099864 is a wasteful number, since it uses less digits than its factorization.

164099864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22883 (or 22879 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 164099864 is about 12810.1469156290. The cubic root of 164099864 is about 547.4814477704.

The spelling of 164099864 in words is "one hundred sixty-four million, ninety-nine thousand, eight hundred sixty-four".