165002369868 has 384 divisors, whose sum is σ = 517031424000. Its totient is φ = 44515215360.

The previous prime is 165002369837. The next prime is 165002369879. The reversal of 165002369868 is 868963200561.

It is a happy number.

165002369868 is a `hidden beast` number, since 16 + 500 + 2 + 3 + 69 + 8 + 68 = 666.

165002369868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 200976898 + ... + 200977718.

It is an arithmetic number, because the mean of its divisors is an integer number (1346436000).

Almost surely, 2^165002369868 is an apocalyptic number.

165002369868 is a gapful number since it is divisible by the number (18) 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 165002369868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258515712000).

165002369868 is an abundant number, since it is smaller than the sum of its proper divisors (352029054132).

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

165002369868 is a wasteful number, since it uses less digits than its factorization.

165002369868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 165002369868 in words is "one hundred sixty-five billion, two million, three hundred sixty-nine thousand, eight hundred sixty-eight".