33194155968 has 112 divisors (see below), whose sum is σ = 97746982560. Its totient is φ = 11046316032.

The previous prime is 33194155961. The next prime is 33194155993. The reversal of 33194155968 is 86955149133.

33194155968 is a `hidden beast` number, since 3 + 3 + 1 + 9 + 41 + 5 + 596 + 8 = 666.

It is a super-2 number, since 2×33194155968² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33194155961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1043596 + ... + 1074932.

Almost surely, 2^33194155968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33194155968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48873491280).

33194155968 is an abundant number, since it is smaller than the sum of its proper divisors (64552826592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33194155968 is a wasteful number, since it uses less digits than its factorization.

33194155968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31971 (or 31955 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The spelling of 33194155968 in words is "thirty-three billion, one hundred ninety-four million, one hundred fifty-five thousand, nine hundred sixty-eight".