766516413 has 16 divisors (see below), whose sum is σ = 1104195456. Its totient is φ = 470178240.

The previous prime is 766516379. The next prime is 766516427. The reversal of 766516413 is 314615667.

It is not a de Polignac number, because 766516413 - 2¹⁰ = 766515389 is a prime.

It is a super-2 number, since 2×766516413² = 1175094822796773138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766516433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19470 + ... + 43727.

It is an arithmetic number, because the mean of its divisors is an integer number (69012216).

Almost surely, 2^766516413 is an apocalyptic number.

It is an amenable number.

766516413 is a deficient number, since it is larger than the sum of its proper divisors (337679043).

766516413 is a wasteful number, since it uses less digits than its factorization.

766516413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63524.

The product of its digits is 90720, while the sum is 39.

The square root of 766516413 is about 27686.0328143994. The cubic root of 766516413 is about 915.1813322721.

The spelling of 766516413 in words is "seven hundred sixty-six million, five hundred sixteen thousand, four hundred thirteen".