33404320664 has 64 divisors (see below), whose sum is σ = 76782263040. Its totient is φ = 13406405760.

The previous prime is 33404320657. The next prime is 33404320699. The reversal of 33404320664 is 46602340433.

It is a super-2 number, since 2×33404320664² (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 15 ways as a sum of consecutive naturals, for example, 608462 + ... + 661085.

It is an arithmetic number, because the mean of its divisors is an integer number (1199722860).

Almost surely, 2^33404320664 is an apocalyptic number.

It is an amenable number.

33404320664 is an abundant number, since it is smaller than the sum of its proper divisors (43377942376).

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

33404320664 is a wasteful number, since it uses less digits than its factorization.

33404320664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269600 (or 1269596 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 35.

The spelling of 33404320664 in words is "thirty-three billion, four hundred four million, three hundred twenty thousand, six hundred sixty-four".