33331431996 has 72 divisors (see below), whose sum is σ = 89285742000. Its totient is φ = 10465701120.

The previous prime is 33331431949. The next prime is 33331432003. The reversal of 33331431996 is 69913413333.

It is a super-2 number, since 2×33331431996² (a number of 22 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346546 + ... + 432153.

It is an arithmetic number, because the mean of its divisors is an integer number (1240079750).

Almost surely, 2^33331431996 is an apocalyptic number.

33331431996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

33331431996 is an abundant number, since it is smaller than the sum of its proper divisors (55954310004).

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

33331431996 is a wasteful number, since it uses less digits than its factorization.

33331431996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778779 (or 778774 counting only the distinct ones).

The product of its digits is 472392, while the sum is 45.

The spelling of 33331431996 in words is "thirty-three billion, three hundred thirty-one million, four hundred thirty-one thousand, nine hundred ninety-six".