33506665012 has 24 divisors (see below), whose sum is σ = 60113168640. Its totient is φ = 16332104640.

The previous prime is 33506664979. The next prime is 33506665021. The reversal of 33506665012 is 21056660533.

It is a super-2 number, since 2×33506665012² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136189 + ... + 292507.

It is an arithmetic number, because the mean of its divisors is an integer number (2504715360).

Almost surely, 2^33506665012 is an apocalyptic number.

It is an amenable number.

33506665012 is a deficient number, since it is larger than the sum of its proper divisors (26606503628).

33506665012 is a wasteful number, since it uses less digits than its factorization.

33506665012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157671 (or 157669 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 33506665012 in words is "thirty-three billion, five hundred six million, six hundred sixty-five thousand, twelve".