33136660872 has 64 divisors (see below), whose sum is σ = 105195753600. Its totient is φ = 9467616960.

The previous prime is 33136660849. The next prime is 33136660913. The reversal of 33136660872 is 27806663133.

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 15 ways as a sum of consecutive naturals, for example, 10956379 + ... + 10959402.

It is an arithmetic number, because the mean of its divisors is an integer number (1643683650).

Almost surely, 2^33136660872 is an apocalyptic number.

It is an amenable number.

33136660872 is an abundant number, since it is smaller than the sum of its proper divisors (72059092728).

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

33136660872 is a wasteful number, since it uses less digits than its factorization.

33136660872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21915803 (or 21915793 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 33136660872 in words is "thirty-three billion, one hundred thirty-six million, six hundred sixty thousand, eight hundred seventy-two".