162555555261 has 12 divisors (see below), whose sum is σ = 238235690336. Its totient is φ = 98518518120.

The previous prime is 162555555247. The next prime is 162555555301.

162555555261 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 162555555261 - 2⁵ = 162555555229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162555555261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162555555061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223905361 + ... + 223906086.

Almost surely, 2^162555555261 is an apocalyptic number.

162555555261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162555555261 is a deficient number, since it is larger than the sum of its proper divisors (75680135075).

162555555261 is a wasteful number, since it uses less digits than its factorization.

162555555261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447811472 (or 447811461 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 48.

The spelling of 162555555261 in words is "one hundred sixty-two billion, five hundred fifty-five million, five hundred fifty-five thousand, two hundred sixty-one".