165036364992 has 168 divisors, whose sum is σ = 475230444000. Its totient is φ = 54758965248.

The previous prime is 165036364981. The next prime is 165036365027. The reversal of 165036364992 is 299463630561.

165036364992 is a `hidden beast` number, since 1 + 6 + 503 + 6 + 3 + 6 + 49 + 92 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199078434 + ... + 199079262.

Almost surely, 2^165036364992 is an apocalyptic number.

165036364992 is a gapful number since it is divisible by the number (12) 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 165036364992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237615222000).

165036364992 is an abundant number, since it is smaller than the sum of its proper divisors (310194079008).

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

165036364992 is a wasteful number, since it uses less digits than its factorization.

165036364992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023 (or 2010 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 165036364992 in words is "one hundred sixty-five billion, thirty-six million, three hundred sixty-four thousand, nine hundred ninety-two".