766716544 has 32 divisors (see below), whose sum is σ = 1666304640. Its totient is φ = 348506880.

The previous prime is 766716469. The next prime is 766716563. The reversal of 766716544 is 445617667.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 766716494 and 766716503.

It is an unprimeable number.

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, 270864 + ... + 273679.

It is an arithmetic number, because the mean of its divisors is an integer number (52072020).

Almost surely, 2^766716544 is an apocalyptic number.

It is an amenable number.

766716544 is an abundant number, since it is smaller than the sum of its proper divisors (899588096).

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

766716544 is a wasteful number, since it uses less digits than its factorization.

766716544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544568 (or 544556 counting only the distinct ones).

The product of its digits is 846720, while the sum is 46.

The square root of 766716544 is about 27689.6468738769. The cubic root of 766716544 is about 915.2609740620.

The spelling of 766716544 in words is "seven hundred sixty-six million, seven hundred sixteen thousand, five hundred forty-four".