164367868880 has 20 divisors (see below), whose sum is σ = 382155295332. Its totient is φ = 65747147520.

The previous prime is 164367868859. The next prime is 164367868927. The reversal of 164367868880 is 88868763461.

It can be written as a sum of positive squares in 2 ways, for example, as 64357601344 + 100010267536 = 253688^2 + 316244^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027299101 + ... + 1027299260.

Almost surely, 2^164367868880 is an apocalyptic number.

164367868880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164367868880 is an abundant number, since it is smaller than the sum of its proper divisors (217787426452).

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

164367868880 is a wasteful number, since it uses less digits than its factorization.

164367868880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054598374 (or 2054598368 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 65.

The spelling of 164367868880 in words is "one hundred sixty-four billion, three hundred sixty-seven million, eight hundred sixty-eight thousand, eight hundred eighty".