766696085520 has 160 divisors (see below), whose sum is σ = 2394223140864. Its totient is φ = 202951872000.

The previous prime is 766696085471. The next prime is 766696085527. The reversal of 766696085520 is 25580696667.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (766696085527) 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, 55911465 + ... + 55925175.

Almost surely, 2^766696085520 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 766696085520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197111570432).

766696085520 is an abundant number, since it is smaller than the sum of its proper divisors (1627527055344).

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

766696085520 is a wasteful number, since it uses less digits than its factorization.

766696085520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421 (or 15415 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 766696085520 in words is "seven hundred sixty-six billion, six hundred ninety-six million, eighty-five thousand, five hundred twenty".