766642726212606 has 24 divisors (see below), whose sum is σ = 1661123941757280. Its totient is φ = 255537621307296.

The previous prime is 766642726212589. The next prime is 766642726212607. The reversal of 766642726212606 is 606212627246667.

It is a super-2 number, since 2×766642726212606² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766642726212607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 829033126 + ... + 829957353.

It is an arithmetic number, because the mean of its divisors is an integer number (69213497573220).

Almost surely, 2^{766642726212606} is an apocalyptic number.

766642726212606 is an abundant number, since it is smaller than the sum of its proper divisors (894481215544674).

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

766642726212606 is a wasteful number, since it uses less digits than its factorization.

766642726212606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659016160 (or 1659016157 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 63.

The spelling of 766642726212606 in words is "seven hundred sixty-six trillion, six hundred forty-two billion, seven hundred twenty-six million, two hundred twelve thousand, six hundred six".