74766602320 has 80 divisors (see below), whose sum is σ = 181463385600. Its totient is φ = 28594824192.

The previous prime is 74766602257. The next prime is 74766602341. The reversal of 74766602320 is 2320666747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 5603497 + ... + 5616823.

It is an arithmetic number, because the mean of its divisors is an integer number (2268292320).

Almost surely, 2^74766602320 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 74766602320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90731692800).

74766602320 is an abundant number, since it is smaller than the sum of its proper divisors (106696783280).

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

74766602320 is a wasteful number, since it uses less digits than its factorization.

74766602320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16412 (or 16406 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 74766602320 in words is "seventy-four billion, seven hundred sixty-six million, six hundred two thousand, three hundred twenty".