33161138404 has 27 divisors (see below), whose sum is σ = 58793191177. Its totient is φ = 16365870944.

The previous prime is 33161138401. The next prime is 33161138407. The reversal of 33161138404 is 40483116133.

The square root of 33161138404 is 182102.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (33161138401) and next prime (33161138407).

It can be written as a sum of positive squares in only one way, i.e., 9430352100 + 23730786304 = 97110^2 + 154048^2 .

It is a super-2 number, since 2×33161138404² (a number of 22 digits) contains 22 as substring.

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 33161138404.

It is not an unprimeable number, because it can be changed into a prime (33161138401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30228384 + ... + 30229480.

Almost surely, 2^33161138404 is an apocalyptic number.

33161138404 is the 182102-nd square number.

It is an amenable number.

33161138404 is a deficient number, since it is larger than the sum of its proper divisors (25632052773).

33161138404 is an frugal number, since it uses more digits than its factorization.

33161138404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

Multiplying 33161138404 by its product of nonzero digits (20736), we get a square (687629365945344 = 26222688²).

The spelling of 33161138404 in words is "thirty-three billion, one hundred sixty-one million, one hundred thirty-eight thousand, four hundred four".