76661628996 has 96 divisors (see below), whose sum is σ = 192764880000. Its totient is φ = 23623999488.

The previous prime is 76661628991. The next prime is 76661628997. The reversal of 76661628996 is 69982616667.

It is not an unprimeable number, because it can be changed into a prime (76661628991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25141680 + ... + 25144728.

It is an arithmetic number, because the mean of its divisors is an integer number (2007967500).

Almost surely, 2^76661628996 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 76661628996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96382440000).

76661628996 is an abundant number, since it is smaller than the sum of its proper divisors (116103251004).

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

76661628996 is a wasteful number, since it uses less digits than its factorization.

76661628996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221 (or 5219 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 66.

The spelling of 76661628996 in words is "seventy-six billion, six hundred sixty-one million, six hundred twenty-eight thousand, nine hundred ninety-six".