77665333230 has 48 divisors (see below), whose sum is σ = 208443740544. Its totient is φ = 20042665920.

The previous prime is 77665333219. The next prime is 77665333309. The reversal of 77665333230 is 3233356677.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 13915729 + ... + 13921308.

It is an arithmetic number, because the mean of its divisors is an integer number (4342577928).

Almost surely, 2^77665333230 is an apocalyptic number.

77665333230 is an abundant number, since it is smaller than the sum of its proper divisors (130778407314).

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

77665333230 is a wasteful number, since it uses less digits than its factorization.

77665333230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27837081 (or 27837078 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 45.

The spelling of 77665333230 in words is "seventy-seven billion, six hundred sixty-five million, three hundred thirty-three thousand, two hundred thirty".