165045202740 has 216 divisors, whose sum is σ = 574214344704. Its totient is φ = 38271235200.

The previous prime is 165045202711. The next prime is 165045202759. The reversal of 165045202740 is 47202540561.

It is a happy number.

165045202740 is a `hidden beast` number, since 1 + 65 + 0 + 4 + 520 + 2 + 74 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 165045202695 and 165045202704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 336205 + ... + 665675.

It is an arithmetic number, because the mean of its divisors is an integer number (2658399744).

Almost surely, 2^165045202740 is an apocalyptic number.

165045202740 is a gapful number since it is divisible by the number (10) 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 165045202740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287107172352).

165045202740 is an abundant number, since it is smaller than the sum of its proper divisors (409169141964).

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

165045202740 is a wasteful number, since it uses less digits than its factorization.

165045202740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329531 (or 329515 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 165045202740 in words is "one hundred sixty-five billion, forty-five million, two hundred two thousand, seven hundred forty".