766765056 has 48 divisors (see below), whose sum is σ = 2044224000. Its totient is φ = 255586304.

The previous prime is 766765049. The next prime is 766765057. The reversal of 766765056 is 650567667.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×766765056² = 1175857302205366272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 766764996 and 766765014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766765057) 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, 56256 + ... + 68543.

It is an arithmetic number, because the mean of its divisors is an integer number (42588000).

Almost surely, 2^766765056 is an apocalyptic number.

It is an amenable number.

766765056 is an abundant number, since it is smaller than the sum of its proper divisors (1277458944).

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

766765056 is a wasteful number, since it uses less digits than its factorization.

766765056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124824 (or 124804 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 48.

The square root of 766765056 is about 27690.5228553020. The cubic root of 766765056 is about 915.2802772427.

The spelling of 766765056 in words is "seven hundred sixty-six million, seven hundred sixty-five thousand, fifty-six".