12177780116528 has 30 divisors (see below), whose sum is σ = 25549018719084. Its totient is φ = 5620513898688.

The previous prime is 12177780116503. The next prime is 12177780116563. The reversal of 12177780116528 is 82561108777121.

It is a super-3 number, since 3×12177780116528³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2251805750 + ... + 2251811157.

Almost surely, 2^{12177780116528} is an apocalyptic number.

It is an amenable number.

12177780116528 is an abundant number, since it is smaller than the sum of its proper divisors (13371238602556).

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

12177780116528 is a wasteful number, since it uses less digits than its factorization.

12177780116528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503616941 (or 4503616922 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 56.

The spelling of 12177780116528 in words is "twelve trillion, one hundred seventy-seven billion, seven hundred eighty million, one hundred sixteen thousand, five hundred twenty-eight".