164428016874 has 16 divisors (see below), whose sum is σ = 358752036960. Its totient is φ = 49826671760.

The previous prime is 164428016843. The next prime is 164428016881. The reversal of 164428016874 is 478610824461.

It is a super-3 number, since 3×164428016874³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245666729 + ... + 1245666860.

It is an arithmetic number, because the mean of its divisors is an integer number (22422002310).

Almost surely, 2^164428016874 is an apocalyptic number.

164428016874 is an abundant number, since it is smaller than the sum of its proper divisors (194324020086).

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

164428016874 is a wasteful number, since it uses less digits than its factorization.

164428016874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491333605.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 164428016874 in words is "one hundred sixty-four billion, four hundred twenty-eight million, sixteen thousand, eight hundred seventy-four".