766668588623 has 48 divisors (see below), whose sum is σ = 920847312000. Its totient is φ = 636064446528.

The previous prime is 766668588599. The next prime is 766668588671. The reversal of 766668588623 is 326885866667.

It is not a de Polignac number, because 766668588623 - 2²² = 766664394319 is a prime.

It is a super-2 number, since 2×766668588623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766668588223) 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, 181286273 + ... + 181290501.

It is an arithmetic number, because the mean of its divisors is an integer number (19184319000).

Almost surely, 2^766668588623 is an apocalyptic number.

766668588623 is a deficient number, since it is larger than the sum of its proper divisors (154178723377).

766668588623 is a wasteful number, since it uses less digits than its factorization.

766668588623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5037 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 71.

The spelling of 766668588623 in words is "seven hundred sixty-six billion, six hundred sixty-eight million, five hundred eighty-eight thousand, six hundred twenty-three".