33456120990 has 32 divisors (see below), whose sum is σ = 80302350240. Its totient is φ = 8920781184.

The previous prime is 33456120983. The next prime is 33456121043. The reversal of 33456120990 is 9902165433.

It is a happy number.

It is a super-2 number, since 2×33456120990² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 306372 + ... + 400968.

It is an arithmetic number, because the mean of its divisors is an integer number (2509448445).

Almost surely, 2^33456120990 is an apocalyptic number.

33456120990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33456120990 is an abundant number, since it is smaller than the sum of its proper divisors (46846229250).

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

33456120990 is a wasteful number, since it uses less digits than its factorization.

33456120990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106396.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 33456120990 in words is "thirty-three billion, four hundred fifty-six million, one hundred twenty thousand, nine hundred ninety".