766610804736 has 624 divisors, whose sum is σ = 2657446102080. Its totient is φ = 217751224320.

The previous prime is 766610804731. The next prime is 766610804737. The reversal of 766610804736 is 637408016667.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (766610804731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1305980635 + ... + 1305981221.

Almost surely, 2^766610804736 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 766610804736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328723051040).

766610804736 is an abundant number, since it is smaller than the sum of its proper divisors (1890835297344).

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

766610804736 is a wasteful number, since it uses less digits than its factorization.

766610804736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 766610804736 in words is "seven hundred sixty-six billion, six hundred ten million, eight hundred four thousand, seven hundred thirty-six".