165572133384 has 128 divisors (see below), whose sum is σ = 493786275840. Its totient is φ = 45235314432.

The previous prime is 165572133359. The next prime is 165572133421. The reversal of 165572133384 is 483331275561.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19961142 + ... + 19969434.

It is an arithmetic number, because the mean of its divisors is an integer number (3857705280).

Almost surely, 2^165572133384 is an apocalyptic number.

165572133384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165572133384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246893137920).

165572133384 is an abundant number, since it is smaller than the sum of its proper divisors (328214142456).

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

165572133384 is a wasteful number, since it uses less digits than its factorization.

165572133384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13499 (or 13495 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 165572133384 in words is "one hundred sixty-five billion, five hundred seventy-two million, one hundred thirty-three thousand, three hundred eighty-four".