66566500106 has 8 divisors (see below), whose sum is σ = 102171837504. Its totient is φ = 32509220940.

The previous prime is 66566500051. The next prime is 66566500123. The reversal of 66566500106 is 60100566566.

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

It is a super-2 number, since 2×66566500106² (a number of 22 digits) contains 22 as substring.

It is a Curzon 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, 387014450 + ... + 387014621.

It is an arithmetic number, because the mean of its divisors is an integer number (12771479688).

Almost surely, 2^66566500106 is an apocalyptic number.

66566500106 is a deficient number, since it is larger than the sum of its proper divisors (35605337398).

66566500106 is a wasteful number, since it uses less digits than its factorization.

66566500106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774029116.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 66566500106 in words is "sixty-six billion, five hundred sixty-six million, five hundred thousand, one hundred six".