766616045 has 8 divisors (see below), whose sum is σ = 990703896. Its totient is φ = 566116416.

The previous prime is 766616033. The next prime is 766616057. The reversal of 766616045 is 540616667.

It is an interprime number because it is at equal distance from previous prime (766616033) and next prime (766616057).

It can be written as a sum of positive squares in 4 ways, for example, as 43059844 + 723556201 = 6562^2 + 26899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 766616045 - 2⁶ = 766615981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 766615993 and 766616011.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5896982 + ... + 5897111.

It is an arithmetic number, because the mean of its divisors is an integer number (123837987).

Almost surely, 2^766616045 is an apocalyptic number.

It is an amenable number.

766616045 is a deficient number, since it is larger than the sum of its proper divisors (224087851).

766616045 is a wasteful number, since it uses less digits than its factorization.

766616045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11794111.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 766616045 is about 27687.8320747580. The cubic root of 766616045 is about 915.2209823891.

The spelling of 766616045 in words is "seven hundred sixty-six million, six hundred sixteen thousand, forty-five".