33556440012 has 24 divisors (see below), whose sum is σ = 82904146416. Its totient is φ = 10527510528.

The previous prime is 33556439971. The next prime is 33556440083. The reversal of 33556440012 is 21004465533.

It is a super-2 number, since 2×33556440012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82245973 + ... + 82246380.

It is an arithmetic number, because the mean of its divisors is an integer number (3454339434).

Almost surely, 2^33556440012 is an apocalyptic number.

It is an amenable number.

33556440012 is an abundant number, since it is smaller than the sum of its proper divisors (49347706404).

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

33556440012 is a wasteful number, since it uses less digits than its factorization.

33556440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164492377 (or 164492375 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 33556440012 in words is "thirty-three billion, five hundred fifty-six million, four hundred forty thousand, twelve".