33668606394 has 32 divisors (see below), whose sum is σ = 74825642880. Its totient is φ = 11221891200.

The previous prime is 33668606381. The next prime is 33668606479. The reversal of 33668606394 is 49360686633.

It is a super-2 number, since 2×33668606394² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 33668606394.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871059 + ... + 908889.

It is an arithmetic number, because the mean of its divisors is an integer number (2338301340).

Almost surely, 2^33668606394 is an apocalyptic number.

33668606394 is an abundant number, since it is smaller than the sum of its proper divisors (41157036486).

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

33668606394 is a wasteful number, since it uses less digits than its factorization.

33668606394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54323 (or 54317 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 54.

The spelling of 33668606394 in words is "thirty-three billion, six hundred sixty-eight million, six hundred six thousand, three hundred ninety-four".