766135891266 has 32 divisors (see below), whose sum is σ = 1602708387840. Its totient is φ = 243692197584.

The previous prime is 766135891253. The next prime is 766135891267. The reversal of 766135891266 is 662198531667.

It is not an unprimeable number, because it can be changed into a prime (766135891267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6567130 + ... + 6682773.

It is an arithmetic number, because the mean of its divisors is an integer number (50084637120).

Almost surely, 2^766135891266 is an apocalyptic number.

766135891266 is an abundant number, since it is smaller than the sum of its proper divisors (836572496574).

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

766135891266 is a wasteful number, since it uses less digits than its factorization.

766135891266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13250350.

The product of its digits is 19595520, while the sum is 60.

The spelling of 766135891266 in words is "seven hundred sixty-six billion, one hundred thirty-five million, eight hundred ninety-one thousand, two hundred sixty-six".