165740796 has 96 divisors (see below), whose sum is σ = 467906880. Its totient is φ = 50429952.

The previous prime is 165740789. The next prime is 165740801. The reversal of 165740796 is 697047561.

It is a happy number.

165740796 is a `hidden beast` number, since 1 + 6 + 574 + 0 + 79 + 6 = 666.

It is a super-2 number, since 2×165740796² = 54940022917427232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135580 + ... + 136796.

It is an arithmetic number, because the mean of its divisors is an integer number (4874030).

Almost surely, 2^165740796 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 165740796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233953440).

165740796 is an abundant number, since it is smaller than the sum of its proper divisors (302166084).

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

165740796 is a wasteful number, since it uses less digits than its factorization.

165740796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 165740796 is about 12874.0357308810. The cubic root of 165740796 is about 549.3002627542.

The spelling of 165740796 in words is "one hundred sixty-five million, seven hundred forty thousand, seven hundred ninety-six".