165324262336240 has 80 divisors (see below), whose sum is σ = 439293794826240. Its totient is φ = 56682138159360.

The previous prime is 165324262336231. The next prime is 165324262336271. The reversal of 165324262336240 is 42633262423561.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×165324262336240² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70760641 + ... + 73059679.

It is an arithmetic number, because the mean of its divisors is an integer number (5491172435328).

Almost surely, 2^{165324262336240} is an apocalyptic number.

165324262336240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165324262336240 is an abundant number, since it is smaller than the sum of its proper divisors (273969532490000).

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

165324262336240 is a wasteful number, since it uses less digits than its factorization.

165324262336240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427470 (or 2427464 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 49.

The spelling of 165324262336240 in words is "one hundred sixty-five trillion, three hundred twenty-four billion, two hundred sixty-two million, three hundred thirty-six thousand, two hundred forty".