66100510005 has 8 divisors (see below), whose sum is σ = 105760816032. Its totient is φ = 35253605328.

The previous prime is 66100509997. The next prime is 66100510013. The reversal of 66100510005 is 50001500166.

It is an interprime number because it is at equal distance from previous prime (66100509997) and next prime (66100510013).

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

It is not a de Polignac number, because 66100510005 - 2³ = 66100509997 is a prime.

It is a super-2 number, since 2×66100510005² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203350319 + ... + 2203350348.

It is an arithmetic number, because the mean of its divisors is an integer number (13220102004).

Almost surely, 2^66100510005 is an apocalyptic number.

It is an amenable number.

66100510005 is a deficient number, since it is larger than the sum of its proper divisors (39660306027).

66100510005 is a wasteful number, since it uses less digits than its factorization.

66100510005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406700675.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 66100510005 in words is "sixty-six billion, one hundred million, five hundred ten thousand, five".