56766156766 has 8 divisors (see below), whose sum is σ = 92890074744. Its totient is φ = 25802798520.

The previous prime is 56766156673. The next prime is 56766156773. The reversal of 56766156766 is 66765166765.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1290139905 + ... + 1290139948.

It is an arithmetic number, because the mean of its divisors is an integer number (11611259343).

Almost surely, 2^56766156766 is an apocalyptic number.

56766156766 is a deficient number, since it is larger than the sum of its proper divisors (36123917978).

56766156766 is a wasteful number, since it uses less digits than its factorization.

56766156766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580279866.

The product of its digits is 57153600, while the sum is 61.

Subtracting 56766156766 from its reverse (66765166765), we obtain a palindrome (9999009999).

The spelling of 56766156766 in words is "fifty-six billion, seven hundred sixty-six million, one hundred fifty-six thousand, seven hundred sixty-six".