33871348161 has 12 divisors (see below), whose sum is σ = 55914606592. Its totient is φ = 19355056056.

The previous prime is 33871348157. The next prime is 33871348171. The reversal of 33871348161 is 16184317833.

33871348161 is a `hidden beast` number, since 3 + 387 + 134 + 81 + 61 = 666.

It is not a de Polignac number, because 33871348161 - 2² = 33871348157 is a prime.

It is a super-2 number, since 2×33871348161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33871348151) 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, 268820161 + ... + 268820286.

Almost surely, 2^33871348161 is an apocalyptic number.

It is an amenable number.

33871348161 is a deficient number, since it is larger than the sum of its proper divisors (22043258431).

33871348161 is a wasteful number, since it uses less digits than its factorization.

33871348161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537640460 (or 537640457 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 33871348161 in words is "thirty-three billion, eight hundred seventy-one million, three hundred forty-eight thousand, one hundred sixty-one".