766432136165020 has 48 divisors (see below), whose sum is σ = 1745785651690080. Its totient is φ = 280954425551616.

The previous prime is 766432136164969. The next prime is 766432136165041. The reversal of 766432136165020 is 20561631234667.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10603618207 + ... + 10603690486.

It is an arithmetic number, because the mean of its divisors is an integer number (36370534410210).

Almost surely, 2^{766432136165020} is an apocalyptic number.

It is an amenable number.

766432136165020 is an abundant number, since it is smaller than the sum of its proper divisors (979353515525060).

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

766432136165020 is a wasteful number, since it uses less digits than its factorization.

766432136165020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207308854 (or 21207308852 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 52.

Adding to 766432136165020 its reverse (20561631234667), we get a palindrome (786993767399687).

The spelling of 766432136165020 in words is "seven hundred sixty-six trillion, four hundred thirty-two billion, one hundred thirty-six million, one hundred sixty-five thousand, twenty".