33668870016 has 64 divisors (see below), whose sum is σ = 90767825280. Its totient is φ = 11055441408.

The previous prime is 33668870003. The next prime is 33668870021. The reversal of 33668870016 is 61007886633.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×33668870016² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 628596 + ... + 680051.

It is an arithmetic number, because the mean of its divisors is an integer number (1418247270).

Almost surely, 2^33668870016 is an apocalyptic number.

It is an amenable number.

33668870016 is an abundant number, since it is smaller than the sum of its proper divisors (57098955264).

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

33668870016 is a wasteful number, since it uses less digits than its factorization.

33668870016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308731 (or 1308719 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 33668870016 in words is "thirty-three billion, six hundred sixty-eight million, eight hundred seventy thousand, sixteen".