165043313036340 has 48 divisors (see below), whose sum is σ = 462152628362880. Its totient is φ = 44008564251520.

The previous prime is 165043313036321. The next prime is 165043313036347. The reversal of 165043313036340 is 43630313340561.

It is a happy number.

It is a super-2 number, since 2×165043313036340² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165043313036292 and 165043313036301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165043313036347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92417280 + ... + 94186199.

It is an arithmetic number, because the mean of its divisors is an integer number (9628179757560).

Almost surely, 2^{165043313036340} is an apocalyptic number.

165043313036340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165043313036340 is an abundant number, since it is smaller than the sum of its proper divisors (297109315326540).

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

165043313036340 is a wasteful number, since it uses less digits than its factorization.

165043313036340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186618232 (or 186618230 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 165043313036340 in words is "one hundred sixty-five trillion, forty-three billion, three hundred thirteen million, thirty-six thousand, three hundred forty".