56666066106 has 32 divisors (see below), whose sum is σ = 122086117440. Its totient is φ = 17430551424.

The previous prime is 56666066071. The next prime is 56666066123. The reversal of 56666066106 is 60166066665.

It is a super-2 number, since 2×56666066106² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161965 + ... + 373583.

It is an arithmetic number, because the mean of its divisors is an integer number (3815191170).

Almost surely, 2^56666066106 is an apocalyptic number.

56666066106 is an abundant number, since it is smaller than the sum of its proper divisors (65420051334).

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

56666066106 is a wasteful number, since it uses less digits than its factorization.

56666066106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215070.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 56666066106 in words is "fifty-six billion, six hundred sixty-six million, sixty-six thousand, one hundred six".