56703530666 has 8 divisors (see below), whose sum is σ = 85064679264. Its totient is φ = 28348637580.

The previous prime is 56703530567. The next prime is 56703530671. The reversal of 56703530666 is 66603530765.

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

It is a self number, because there is not a number n which added to its sum of digits gives 56703530666.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541150 + ... + 1577513.

It is an arithmetic number, because the mean of its divisors is an integer number (10633084908).

Almost surely, 2^56703530666 is an apocalyptic number.

56703530666 is a deficient number, since it is larger than the sum of its proper divisors (28361148598).

56703530666 is a wasteful number, since it uses less digits than its factorization.

56703530666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127756.

The product of its (nonzero) digits is 2041200, while the sum is 47.

Subtracting 56703530666 from its reverse (66603530765), we obtain a palindrome (9900000099).

The spelling of 56703530666 in words is "fifty-six billion, seven hundred three million, five hundred thirty thousand, six hundred sixty-six".