33681035668 has 12 divisors (see below), whose sum is σ = 67362071392. Its totient is φ = 14434729560.

The previous prime is 33681035627. The next prime is 33681035671. The reversal of 33681035668 is 86653018633.

33681035668 is an admirable number.

It is a super-2 number, since 2×33681035668² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601447038 + ... + 601447093.

Almost surely, 2^33681035668 is an apocalyptic number.

It is an amenable number.

33681035668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33681035668 is a wasteful number, since it uses less digits than its factorization.

33681035668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202894142 (or 1202894140 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

It can be divided in two parts, 336 and 81035668, that added together give a square (81036004 = 9002²).

The spelling of 33681035668 in words is "thirty-three billion, six hundred eighty-one million, thirty-five thousand, six hundred sixty-eight".