165494826 has 80 divisors (see below), whose sum is σ = 446170560. Its totient is φ = 44789760.

The previous prime is 165494803. The next prime is 165494873. The reversal of 165494826 is 628494561.

165494826 is a `hidden beast` number, since 165 + 4 + 9 + 482 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17706 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (5577132).

Almost surely, 2^165494826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165494826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223085280).

165494826 is an abundant number, since it is smaller than the sum of its proper divisors (280675734).

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

165494826 is a wasteful number, since it uses less digits than its factorization.

165494826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721 (or 7712 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 165494826 is about 12864.4792354763. The cubic root of 165494826 is about 549.0283959155.

The spelling of 165494826 in words is "one hundred sixty-five million, four hundred ninety-four thousand, eight hundred twenty-six".