165726996 has 96 divisors (see below), whose sum is σ = 419556480. Its totient is φ = 50803200.

The previous prime is 165726991. The next prime is 165726997. The reversal of 165726996 is 699627561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165726991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785331 + ... + 785541.

It is an arithmetic number, because the mean of its divisors is an integer number (4370380).

Almost surely, 2^165726996 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 165726996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209778240).

165726996 is an abundant number, since it is smaller than the sum of its proper divisors (253829484).

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

165726996 is a wasteful number, since it uses less digits than its factorization.

165726996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 343 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 165726996 is about 12873.4997572533. The cubic root of 165726996 is about 549.2850169523.

The spelling of 165726996 in words is "one hundred sixty-five million, seven hundred twenty-six thousand, nine hundred ninety-six".