162955881 has 40 divisors (see below), whose sum is σ = 272790144. Its totient is φ = 96072480.

The previous prime is 162955879. The next prime is 162955889. The reversal of 162955881 is 188559261.

It is a happy number.

162955881 is a `hidden beast` number, since 1 + 62 + 9 + 5 + 588 + 1 = 666.

It is not a de Polignac number, because 162955881 - 2¹ = 162955879 is a prime.

It is a super-2 number, since 2×162955881² = 53109238304972322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162955889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30496 + ... + 35438.

Almost surely, 2^162955881 is an apocalyptic number.

162955881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

162955881 is a deficient number, since it is larger than the sum of its proper divisors (109834263).

162955881 is a wasteful number, since it uses less digits than its factorization.

162955881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4994 counting only the distinct ones).

The product of its digits is 172800, while the sum is 45.

The square root of 162955881 is about 12765.4173844806. The cubic root of 162955881 is about 546.2062679182.

The spelling of 162955881 in words is "one hundred sixty-two million, nine hundred fifty-five thousand, eight hundred eighty-one".