66207611126 has 4 divisors (see below), whose sum is σ = 99311416692. Its totient is φ = 33103805562.

The previous prime is 66207611047. The next prime is 66207611149. The reversal of 66207611126 is 62111670266.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66207611126.

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 as a sum of consecutive naturals, namely, 16551902780 + ... + 16551902783.

It is an arithmetic number, because the mean of its divisors is an integer number (24827854173).

Almost surely, 2^66207611126 is an apocalyptic number.

66207611126 is a deficient number, since it is larger than the sum of its proper divisors (33103805566).

66207611126 is a wasteful number, since it uses less digits than its factorization.

66207611126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33103805565.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 66207611126 in words is "sixty-six billion, two hundred seven million, six hundred eleven thousand, one hundred twenty-six".