164022154332444 has 144 divisors (see below), whose sum is σ = 415958005532160. Its totient is φ = 54496896491520.

The previous prime is 164022154332427. The next prime is 164022154332457. The reversal of 164022154332444 is 444233451220461.

164022154332444 is a `hidden beast` number, since 1 + 6 + 4 + 0 + 22 + 154 + 3 + 32 + 444 = 666.

It is a super-2 number, since 2×164022154332444² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164022154332444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38385711492 + ... + 38385715764.

It is an arithmetic number, because the mean of its divisors is an integer number (2888597260640).

Almost surely, 2^{164022154332444} is an apocalyptic number.

It is an amenable number.

164022154332444 is an abundant number, since it is smaller than the sum of its proper divisors (251935851199716).

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

164022154332444 is a wasteful number, since it uses less digits than its factorization.

164022154332444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420 (or 7415 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 45.

The spelling of 164022154332444 in words is "one hundred sixty-four trillion, twenty-two billion, one hundred fifty-four million, three hundred thirty-two thousand, four hundred forty-four".