765800016 has 40 divisors (see below), whose sum is σ = 2082441120. Its totient is φ = 241831296.

The previous prime is 765799987. The next prime is 765800047. The reversal of 765800016 is 610008567.

It is a self number, because there is not a number n which added to its sum of digits gives 765800016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418935 + ... + 420758.

It is an arithmetic number, because the mean of its divisors is an integer number (52061028).

Almost surely, 2^765800016 is an apocalyptic number.

765800016 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

765800016 is an abundant number, since it is smaller than the sum of its proper divisors (1316641104).

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

765800016 is a wasteful number, since it uses less digits than its factorization.

765800016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839723 (or 839717 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 765800016 is about 27673.0919125420. The cubic root of 765800016 is about 914.8961296287.

The spelling of 765800016 in words is "seven hundred sixty-five million, eight hundred thousand, sixteen".