766606541837 has 4 divisors (see below), whose sum is σ = 811701044316. Its totient is φ = 721512039360.

The previous prime is 766606541747. The next prime is 766606541843. The reversal of 766606541837 is 738145606667.

766606541837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 715976591716 + 50629950121 = 846154^2 + 225011^2 .

It is a cyclic number.

It is not a de Polignac number, because 766606541837 - 2⁸ = 766606541581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766606541867) 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, 22547251214 + ... + 22547251247.

It is an arithmetic number, because the mean of its divisors is an integer number (202925261079).

Almost surely, 2^766606541837 is an apocalyptic number.

It is an amenable number.

766606541837 is a deficient number, since it is larger than the sum of its proper divisors (45094502479).

766606541837 is a wasteful number, since it uses less digits than its factorization.

766606541837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45094502478.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 766606541837 in words is "seven hundred sixty-six billion, six hundred six million, five hundred forty-one thousand, eight hundred thirty-seven".