56666454106 has 8 divisors (see below), whose sum is σ = 85111378164. Its totient is φ = 28295994720.

The previous prime is 56666454083. The next prime is 56666454109. The reversal of 56666454106 is 60145466665.

It is a happy number.

56666454106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47825753481 + 8840700625 = 218691^2 + 94025^2 .

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

It is a super-2 number, since 2×56666454106² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56666454106.

It is not an unprimeable number, because it can be changed into a prime (56666454109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18614265 + ... + 18617308.

Almost surely, 2^56666454106 is an apocalyptic number.

56666454106 is a deficient number, since it is larger than the sum of its proper divisors (28444924058).

56666454106 is a wasteful number, since it uses less digits than its factorization.

56666454106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37232336.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 56666454106 in words is "fifty-six billion, six hundred sixty-six million, four hundred fifty-four thousand, one hundred six".