165260215 has 8 divisors (see below), whose sum is σ = 198394560. Its totient is φ = 132153312.

The previous prime is 165260209. The next prime is 165260219. The reversal of 165260215 is 512062561.

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 165260215 - 2⁷ = 165260087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165260219) 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, 10297 + ... + 20893.

It is an arithmetic number, because the mean of its divisors is an integer number (24799320).

Almost surely, 2^165260215 is an apocalyptic number.

165260215 is a deficient number, since it is larger than the sum of its proper divisors (33134345).

165260215 is a wasteful number, since it uses less digits than its factorization.

165260215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13721.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165260215 is about 12855.3574434941. The cubic root of 165260215 is about 548.7688328833.

The spelling of 165260215 in words is "one hundred sixty-five million, two hundred sixty thousand, two hundred fifteen".