766066741 has 4 divisors (see below), whose sum is σ = 835709184. Its totient is φ = 696424300.

The previous prime is 766066739. The next prime is 766066747. The reversal of 766066741 is 147660667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 766066741 - 2¹ = 766066739 is a prime.

It is a super-2 number, since 2×766066741² = 1173716503332722162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766066747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34821205 + ... + 34821226.

It is an arithmetic number, because the mean of its divisors is an integer number (208927296).

Almost surely, 2^766066741 is an apocalyptic number.

It is an amenable number.

766066741 is a deficient number, since it is larger than the sum of its proper divisors (69642443).

766066741 is a wasteful number, since it uses less digits than its factorization.

766066741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69642442.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 766066741 is about 27677.9107051092. The cubic root of 766066741 is about 915.0023354873.

The spelling of 766066741 in words is "seven hundred sixty-six million, sixty-six thousand, seven hundred forty-one".