77133918330180 has 144 divisors (see below), whose sum is σ = 248018486330160. Its totient is φ = 19337026166784.

The previous prime is 77133918330137. The next prime is 77133918330211. The reversal of 77133918330180 is 8103381933177.

77133918330180 is a `hidden beast` number, since 7 + 71 + 3 + 391 + 8 + 3 + 3 + 0 + 180 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5063904097344 + 72070014232836 = 2250312^2 + 8489406^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11687625 + ... + 17054864.

It is an arithmetic number, because the mean of its divisors is an integer number (1722350599515).

Almost surely, 2^{77133918330180} is an apocalyptic number.

It is an amenable number.

77133918330180 is an abundant number, since it is smaller than the sum of its proper divisors (170884567999980).

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

77133918330180 is a wasteful number, since it uses less digits than its factorization.

77133918330180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28743398 (or 28743393 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 77133918330180 in words is "seventy-seven trillion, one hundred thirty-three billion, nine hundred eighteen million, three hundred thirty thousand, one hundred eighty".