264820165 has 8 divisors (see below), whose sum is σ = 318510720. Its totient is φ = 211371792.

The previous prime is 264820147. The next prime is 264820207. The reversal of 264820165 is 561028462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264820165 - 2²³ = 256431557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264820165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58129 + ... + 62518.

It is an arithmetic number, because the mean of its divisors is an integer number (39813840).

Almost surely, 2^264820165 is an apocalyptic number.

It is an amenable number.

264820165 is a deficient number, since it is larger than the sum of its proper divisors (53690555).

264820165 is a wasteful number, since it uses less digits than its factorization.

264820165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121091.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 264820165 is about 16273.2960705568. The cubic root of 264820165 is about 642.1704992885.

The spelling of 264820165 in words is "two hundred sixty-four million, eight hundred twenty thousand, one hundred sixty-five".