766757616 has 40 divisors (see below), whose sum is σ = 2085045120. Its totient is φ = 242133696.

The previous prime is 766757611. The next prime is 766757659. The reversal of 766757616 is 616757667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766757611) 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 7 ways as a sum of consecutive naturals, for example, 419460 + ... + 421283.

It is an arithmetic number, because the mean of its divisors is an integer number (52126128).

Almost surely, 2^766757616 is an apocalyptic number.

766757616 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

766757616 is an abundant number, since it is smaller than the sum of its proper divisors (1318287504).

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

766757616 is a wasteful number, since it uses less digits than its factorization.

766757616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840773 (or 840767 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 51.

The square root of 766757616 is about 27690.3885129841. The cubic root of 766757616 is about 915.2773168803.

Adding to 766757616 its sum of digits (51), we get a palindrome (766757667).

The spelling of 766757616 in words is "seven hundred sixty-six million, seven hundred fifty-seven thousand, six hundred sixteen".