165764730 has 16 divisors (see below), whose sum is σ = 397835424. Its totient is φ = 44203920.

The previous prime is 165764717. The next prime is 165764737. The reversal of 165764730 is 37467561.

It is not an unprimeable number, because it can be changed into a prime (165764737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2762716 + ... + 2762775.

It is an arithmetic number, because the mean of its divisors is an integer number (24864714).

Almost surely, 2^165764730 is an apocalyptic number.

165764730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165764730 is an abundant number, since it is smaller than the sum of its proper divisors (232070694).

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

165764730 is a wasteful number, since it uses less digits than its factorization.

165764730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525501.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 165764730 is about 12874.9652426715. The cubic root of 165764730 is about 549.3267022711.

The spelling of 165764730 in words is "one hundred sixty-five million, seven hundred sixty-four thousand, seven hundred thirty".