164268385899 has 16 divisors (see below), whose sum is σ = 234331668480. Its totient is φ = 102047657760.

The previous prime is 164268385873. The next prime is 164268385913. The reversal of 164268385899 is 998583862461.

It is not a de Polignac number, because 164268385899 - 2⁸ = 164268385643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164268384899) 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, 23618667 + ... + 23625620.

It is an arithmetic number, because the mean of its divisors is an integer number (14645729280).

Almost surely, 2^164268385899 is an apocalyptic number.

164268385899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

164268385899 is a deficient number, since it is larger than the sum of its proper divisors (70063282581).

164268385899 is a wasteful number, since it uses less digits than its factorization.

164268385899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47244370.

The product of its digits is 179159040, while the sum is 69.

The spelling of 164268385899 in words is "one hundred sixty-four billion, two hundred sixty-eight million, three hundred eighty-five thousand, eight hundred ninety-nine".