766633007633 has 4 divisors (see below), whose sum is σ = 766643735988. Its totient is φ = 766622279280.

The previous prime is 766633007611. The next prime is 766633007653. The reversal of 766633007633 is 336700336667.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 277567761409 + 489065246224 = 526847^2 + 699332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766633007633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (766633007653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5256266 + ... + 5400147.

It is an arithmetic number, because the mean of its divisors is an integer number (191660933997).

Almost surely, 2^766633007633 is an apocalyptic number.

It is an amenable number.

766633007633 is a deficient number, since it is larger than the sum of its proper divisors (10728355).

766633007633 is a wasteful number, since it uses less digits than its factorization.

766633007633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10728354.

The product of its (nonzero) digits is 5143824, while the sum is 50.

The spelling of 766633007633 in words is "seven hundred sixty-six billion, six hundred thirty-three million, seven thousand, six hundred thirty-three".