165748830 has 32 divisors (see below), whose sum is σ = 428397984. Its totient is φ = 40799616.

The previous prime is 165748829. The next prime is 165748831. The reversal of 165748830 is 38847561.

It is an interprime number because it is at equal distance from previous prime (165748829) and next prime (165748831).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165748831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212109 + ... + 212888.

It is an arithmetic number, because the mean of its divisors is an integer number (13387437).

Almost surely, 2^165748830 is an apocalyptic number.

165748830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165748830 is an abundant number, since it is smaller than the sum of its proper divisors (262649154).

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

165748830 is a wasteful number, since it uses less digits than its factorization.

165748830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425020.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 165748830 is about 12874.3477504688. The cubic root of 165748830 is about 549.3091380726.

The spelling of 165748830 in words is "one hundred sixty-five million, seven hundred forty-eight thousand, eight hundred thirty".