766223688505 has 8 divisors (see below), whose sum is σ = 1003056465024. Its totient is φ = 557253591600.

The previous prime is 766223688467. The next prime is 766223688523. The reversal of 766223688505 is 505886322667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 766223688505 - 2²⁹ = 765686817593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 766223688505.

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, 6965669841 + ... + 6965669950.

It is an arithmetic number, because the mean of its divisors is an integer number (125382058128).

Almost surely, 2^766223688505 is an apocalyptic number.

It is an amenable number.

766223688505 is a deficient number, since it is larger than the sum of its proper divisors (236832776519).

766223688505 is a wasteful number, since it uses less digits than its factorization.

766223688505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13931339807.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 766223688505 in words is "seven hundred sixty-six billion, two hundred twenty-three million, six hundred eighty-eight thousand, five hundred five".