164426669811720 has 96 divisors (see below), whose sum is σ = 534388561761600. Its totient is φ = 43846957293696.

The previous prime is 164426669811653. The next prime is 164426669811773. The reversal of 164426669811720 is 27118966624461.

It is a super-3 number, since 3×164426669811720³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131576949 + ... + 132820731.

It is an arithmetic number, because the mean of its divisors is an integer number (5566547518350).

Almost surely, 2^{164426669811720} is an apocalyptic number.

164426669811720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164426669811720 is an abundant number, since it is smaller than the sum of its proper divisors (369961891949880).

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

164426669811720 is a wasteful number, since it uses less digits than its factorization.

164426669811720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611019 (or 1611012 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 164426669811720 in words is "one hundred sixty-four trillion, four hundred twenty-six billion, six hundred sixty-nine million, eight hundred eleven thousand, seven hundred twenty".