165880949592 has 32 divisors (see below), whose sum is σ = 415260564480. Its totient is φ = 55219224480.

The previous prime is 165880949519. The next prime is 165880949599. The reversal of 165880949592 is 295949088561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165880949599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4633384 + ... + 4669047.

It is an arithmetic number, because the mean of its divisors is an integer number (12976892640).

Almost surely, 2^165880949592 is an apocalyptic number.

165880949592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165880949592 is an abundant number, since it is smaller than the sum of its proper divisors (249379614888).

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

165880949592 is a wasteful number, since it uses less digits than its factorization.

165880949592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9303183 (or 9303179 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 66.

The spelling of 165880949592 in words is "one hundred sixty-five billion, eight hundred eighty million, nine hundred forty-nine thousand, five hundred ninety-two".