165770882450992 has 120 divisors (see below), whose sum is σ = 397524851694816. Its totient is φ = 65570932297728.

The previous prime is 165770882450983. The next prime is 165770882450993. The reversal of 165770882450992 is 299054288077561.

It is not an unprimeable number, because it can be changed into a prime (165770882450993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142079338 + ... + 143241334.

Almost surely, 2^{165770882450992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165770882450992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198762425847408).

165770882450992 is an abundant number, since it is smaller than the sum of its proper divisors (231753969243824).

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

165770882450992 is a wasteful number, since it uses less digits than its factorization.

165770882450992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169575 (or 1169556 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 73.

The spelling of 165770882450992 in words is "one hundred sixty-five trillion, seven hundred seventy billion, eight hundred eighty-two million, four hundred fifty thousand, nine hundred ninety-two".