165026289255 has 16 divisors (see below), whose sum is σ = 265046031360. Its totient is φ = 87679364768.

The previous prime is 165026289193. The next prime is 165026289293. The reversal of 165026289255 is 552982620561.

It is a cyclic number.

It is not a de Polignac number, because 165026289255 - 2¹¹ = 165026287207 is a prime.

It is a super-2 number, since 2×165026289255² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165026289198 and 165026289207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20911935 + ... + 20919824.

It is an arithmetic number, because the mean of its divisors is an integer number (16565376960).

Almost surely, 2^165026289255 is an apocalyptic number.

165026289255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165026289255 is a deficient number, since it is larger than the sum of its proper divisors (100019742105).

165026289255 is a wasteful number, since it uses less digits than its factorization.

165026289255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41832030.

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 165026289255 in words is "one hundred sixty-five billion, twenty-six million, two hundred eighty-nine thousand, two hundred fifty-five".