165460355261 has 16 divisors (see below), whose sum is σ = 171033182208. Its totient is φ = 159963753600.

The previous prime is 165460355251. The next prime is 165460355321. The reversal of 165460355261 is 162553064561.

It is a cyclic number.

It is not a de Polignac number, because 165460355261 - 2²² = 165456160957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165460355251) 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, 4475231 + ... + 4512051.

It is an arithmetic number, because the mean of its divisors is an integer number (10689573888).

Almost surely, 2^165460355261 is an apocalyptic number.

It is an amenable number.

165460355261 is a deficient number, since it is larger than the sum of its proper divisors (5572826947).

165460355261 is a wasteful number, since it uses less digits than its factorization.

165460355261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37852.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 165460355261 in words is "one hundred sixty-five billion, four hundred sixty million, three hundred fifty-five thousand, two hundred sixty-one".