66126243441161 has 8 divisors (see below), whose sum is σ = 66150938640384. Its totient is φ = 66101549034960.

The previous prime is 66126243441109. The next prime is 66126243441163. The reversal of 66126243441161 is 16114434262166.

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 66126243441161 - 2³⁴ = 66109063571977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66126243441163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206496791 + ... + 206816771.

It is an arithmetic number, because the mean of its divisors is an integer number (8268867330048).

Almost surely, 2^{66126243441161} is an apocalyptic number.

It is an amenable number.

66126243441161 is a deficient number, since it is larger than the sum of its proper divisors (24695199223).

66126243441161 is a wasteful number, since it uses less digits than its factorization.

66126243441161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396511.

The product of its digits is 995328, while the sum is 47.

The spelling of 66126243441161 in words is "sixty-six trillion, one hundred twenty-six billion, two hundred forty-three million, four hundred forty-one thousand, one hundred sixty-one".