74884652521660 has 96 divisors (see below), whose sum is σ = 166357521792000. Its totient is φ = 28236444687360.

The previous prime is 74884652521631. The next prime is 74884652521711. The reversal of 74884652521660 is 6612525648847.

It is a happy number.

It is a super-2 number, since 2×74884652521660² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74884652521592 and 74884652521601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111668041 + ... + 112336639.

It is an arithmetic number, because the mean of its divisors is an integer number (1732890852000).

Almost surely, 2^{74884652521660} 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 74884652521660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83178760896000).

74884652521660 is an abundant number, since it is smaller than the sum of its proper divisors (91472869270340).

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

74884652521660 is a wasteful number, since it uses less digits than its factorization.

74884652521660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670091 (or 670089 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 64.

The spelling of 74884652521660 in words is "seventy-four trillion, eight hundred eighty-four billion, six hundred fifty-two million, five hundred twenty-one thousand, six hundred sixty".