66160561107061 has 4 divisors (see below), whose sum is σ = 66161291583712. Its totient is φ = 66159830630412.

The previous prime is 66160561107041. The next prime is 66160561107089. The reversal of 66160561107061 is 16070116506166.

66160561107061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66160561107061 - 2⁷ = 66160561106933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66160561107041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 365102451 + ... + 365283616.

It is an arithmetic number, because the mean of its divisors is an integer number (16540322895928).

Almost surely, 2^{66160561107061} is an apocalyptic number.

It is an amenable number.

66160561107061 is a deficient number, since it is larger than the sum of its proper divisors (730476651).

66160561107061 is an equidigital number, since it uses as much as digits as its factorization.

66160561107061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730476650.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 66160561107061 in words is "sixty-six trillion, one hundred sixty billion, five hundred sixty-one million, one hundred seven thousand, sixty-one".