165026343552 has 64 divisors (see below), whose sum is σ = 500972836800. Its totient is φ = 47150383104.

The previous prime is 165026343523. The next prime is 165026343623. The reversal of 165026343552 is 255343620561.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×165026343552² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 30694177 + ... + 30699552.

It is an arithmetic number, because the mean of its divisors is an integer number (7827700575).

Almost surely, 2^165026343552 is an apocalyptic number.

165026343552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165026343552 is an abundant number, since it is smaller than the sum of its proper divisors (335946493248).

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

165026343552 is an equidigital number, since it uses as much as digits as its factorization.

165026343552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61393753 (or 61393741 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 165026343552 in words is "one hundred sixty-five billion, twenty-six million, three hundred forty-three thousand, five hundred fifty-two".