165121001117160 has 128 divisors (see below), whose sum is σ = 540412018185600. Its totient is φ = 40028147343360.

The previous prime is 165121001117081. The next prime is 165121001117207. The reversal of 165121001117160 is 61711100121561.

It is a super-3 number, since 3×165121001117160³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 43118736 + ... + 46791744.

It is an arithmetic number, because the mean of its divisors is an integer number (4221968892075).

Almost surely, 2^{165121001117160} is an apocalyptic number.

165121001117160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165121001117160 is an abundant number, since it is smaller than the sum of its proper divisors (375291017068440).

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

165121001117160 is a wasteful number, since it uses less digits than its factorization.

165121001117160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707091 (or 3707087 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 33.

The spelling of 165121001117160 in words is "one hundred sixty-five trillion, one hundred twenty-one billion, one million, one hundred seventeen thousand, one hundred sixty".