164327238530 has 64 divisors (see below), whose sum is σ = 364184190720. Its totient is φ = 51987412224.

The previous prime is 164327238527. The next prime is 164327238539. The reversal of 164327238530 is 35832723461.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164327238539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2505617 + ... + 2570363.

It is an arithmetic number, because the mean of its divisors is an integer number (5690377980).

Almost surely, 2^164327238530 is an apocalyptic number.

164327238530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164327238530 is an abundant number, since it is smaller than the sum of its proper divisors (199856952190).

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

164327238530 is a wasteful number, since it uses less digits than its factorization.

164327238530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67563.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 164327238530 in words is "one hundred sixty-four billion, three hundred twenty-seven million, two hundred thirty-eight thousand, five hundred thirty".