164335255616 has 28 divisors (see below), whose sum is σ = 372688884288. Its totient is φ = 70429395072.

The previous prime is 164335255613. The next prime is 164335255661. The reversal of 164335255616 is 616552533461.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (164335255613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183409436 + ... + 183410331.

It is an arithmetic number, because the mean of its divisors is an integer number (13310317296).

Almost surely, 2^164335255616 is an apocalyptic number.

164335255616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164335255616 is an abundant number, since it is smaller than the sum of its proper divisors (208353628672).

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

164335255616 is an equidigital number, since it uses as much as digits as its factorization.

164335255616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366819786 (or 366819776 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The spelling of 164335255616 in words is "one hundred sixty-four billion, three hundred thirty-five million, two hundred fifty-five thousand, six hundred sixteen".