766117156020 has 96 divisors (see below), whose sum is σ = 2390854838400. Its totient is φ = 182160359424.

The previous prime is 766117156019. The next prime is 766117156027. The reversal of 766117156020 is 20651711667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766117156027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19746285 + ... + 19785044.

It is an arithmetic number, because the mean of its divisors is an integer number (24904737900).

Almost surely, 2^766117156020 is an apocalyptic number.

It is an amenable number.

766117156020 is an abundant number, since it is smaller than the sum of its proper divisors (1624737682380).

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

766117156020 is a wasteful number, since it uses less digits than its factorization.

766117156020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39531377 (or 39531375 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

Adding to 766117156020 its reverse (20651711667), we get a palindrome (786768867687).

The spelling of 766117156020 in words is "seven hundred sixty-six billion, one hundred seventeen million, one hundred fifty-six thousand, twenty".