165260321016456 has 32 divisors (see below), whose sum is σ = 413233284535200. Its totient is φ = 55075776072960.

The previous prime is 165260321016421. The next prime is 165260321016473. The reversal of 165260321016456 is 654610123062561.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687227230 + ... + 687467661.

It is an arithmetic number, because the mean of its divisors is an integer number (12913540141725).

Almost surely, 2^{165260321016456} is an apocalyptic number.

It is an amenable number.

165260321016456 is an abundant number, since it is smaller than the sum of its proper divisors (247972963518744).

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

165260321016456 is a wasteful number, since it uses less digits than its factorization.

165260321016456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374699909 (or 1374699905 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 165260321016456 in words is "one hundred sixty-five trillion, two hundred sixty billion, three hundred twenty-one million, sixteen thousand, four hundred fifty-six".