16033612464 has 120 divisors (see below), whose sum is σ = 45333360384. Its totient is φ = 5289840000.

The previous prime is 16033612451. The next prime is 16033612513. The reversal of 16033612464 is 46421633061.

16033612464 is a `hidden beast` number, since 1 + 6 + 0 + 33 + 612 + 4 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6761199 + ... + 6763569.

Almost surely, 2^16033612464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16033612464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22666680192).

16033612464 is an abundant number, since it is smaller than the sum of its proper divisors (29299747920).

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

16033612464 is a wasteful number, since it uses less digits than its factorization.

16033612464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847 (or 2838 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 16033612464 in words is "sixteen billion, thirty-three million, six hundred twelve thousand, four hundred sixty-four".