165260566434351 has 16 divisors (see below), whose sum is σ = 226319181094368. Its totient is φ = 107188263561600.

The previous prime is 165260566434269. The next prime is 165260566434361. The reversal of 165260566434351 is 153434665062561.

It is not a de Polignac number, because 165260566434351 - 2¹⁷ = 165260566303279 is a prime.

It is a super-2 number, since 2×165260566434351² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165260566434291 and 165260566434300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165260566434361) 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, 52487940 + ... + 55547321.

It is an arithmetic number, because the mean of its divisors is an integer number (14144948818398).

Almost surely, 2^{165260566434351} is an apocalyptic number.

165260566434351 is a deficient number, since it is larger than the sum of its proper divisors (61058614660017).

165260566434351 is a wasteful number, since it uses less digits than its factorization.

165260566434351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108049082.

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 165260566434351 in words is "one hundred sixty-five trillion, two hundred sixty billion, five hundred sixty-six million, four hundred thirty-four thousand, three hundred fifty-one".