76660550730 has 48 divisors (see below), whose sum is σ = 204178842504. Its totient is φ = 19944207360.

The previous prime is 76660550677. The next prime is 76660550761. The reversal of 76660550730 is 3705506667.

It can be written as a sum of positive squares in 4 ways, for example, as 30517644249 + 46142906481 = 174693^2 + 214809^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10383919 + ... + 10391298.

Almost surely, 2^76660550730 is an apocalyptic number.

76660550730 is an abundant number, since it is smaller than the sum of its proper divisors (127518291774).

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

76660550730 is a wasteful number, since it uses less digits than its factorization.

76660550730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20775271 (or 20775268 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 45.

The spelling of 76660550730 in words is "seventy-six billion, six hundred sixty million, five hundred fifty thousand, seven hundred thirty".