56666116510 has 8 divisors (see below), whose sum is σ = 101999009736. Its totient is φ = 22666446600.

The previous prime is 56666116379. The next prime is 56666116537. The reversal of 56666116510 is 1561166665.

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

It is a super-2 number, since 2×56666116510² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 2833305816 + ... + 2833305835.

It is an arithmetic number, because the mean of its divisors is an integer number (12749876217).

Almost surely, 2^56666116510 is an apocalyptic number.

56666116510 is a deficient number, since it is larger than the sum of its proper divisors (45332893226).

56666116510 is a wasteful number, since it uses less digits than its factorization.

56666116510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666611658.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 56666116510 in words is "fifty-six billion, six hundred sixty-six million, one hundred sixteen thousand, five hundred ten".