164399149855 has 8 divisors (see below), whose sum is σ = 199232237664. Its totient is φ = 130217148000.

The previous prime is 164399149841. The next prime is 164399149861. The reversal of 164399149855 is 558941993461.

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

It is not a de Polignac number, because 164399149855 - 2¹⁵ = 164399117087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162770931 + ... + 162771940.

It is an arithmetic number, because the mean of its divisors is an integer number (24904029708).

Almost surely, 2^164399149855 is an apocalyptic number.

164399149855 is a deficient number, since it is larger than the sum of its proper divisors (34833087809).

164399149855 is a wasteful number, since it uses less digits than its factorization.

164399149855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325542977.

The product of its digits is 41990400, while the sum is 64.

The spelling of 164399149855 in words is "one hundred sixty-four billion, three hundred ninety-nine million, one hundred forty-nine thousand, eight hundred fifty-five".