66247276105 has 8 divisors (see below), whose sum is σ = 80683250112. Its totient is φ = 52206808368.

The previous prime is 66247276103. The next prime is 66247276187. The reversal of 66247276105 is 50167274266.

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

It is a cyclic number.

It is not a de Polignac number, because 66247276105 - 2¹ = 66247276103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66247276103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 98876197 + ... + 98876866.

It is an arithmetic number, because the mean of its divisors is an integer number (10085406264).

Almost surely, 2^66247276105 is an apocalyptic number.

It is an amenable number.

66247276105 is a deficient number, since it is larger than the sum of its proper divisors (14435974007).

66247276105 is a wasteful number, since it uses less digits than its factorization.

66247276105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197753135.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 66247276105 in words is "sixty-six billion, two hundred forty-seven million, two hundred seventy-six thousand, one hundred five".