165751038 has 24 divisors (see below), whose sum is σ = 359696376. Its totient is φ = 55162800.

The previous prime is 165750989. The next prime is 165751051. The reversal of 165751038 is 830157561.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165750993 and 165751011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4933 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (14987349).

Almost surely, 2^165751038 is an apocalyptic number.

165751038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

165751038 is an abundant number, since it is smaller than the sum of its proper divisors (193945338).

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

165751038 is a wasteful number, since it uses less digits than its factorization.

165751038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600 (or 14597 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 165751038 is about 12874.4335021002. The cubic root of 165751038 is about 549.3115772436.

The spelling of 165751038 in words is "one hundred sixty-five million, seven hundred fifty-one thousand, thirty-eight".