66667410701111 has 16 divisors (see below), whose sum is σ = 77180036018688. Its totient is φ = 56912872598400.

The previous prime is 66667410701053. The next prime is 66667410701147. The reversal of 66667410701111 is 11110701476666.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-66667410701111 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 (66667410701711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402298895 + ... + 402464576.

It is an arithmetic number, because the mean of its divisors is an integer number (4823752251168).

Almost surely, 2^{66667410701111} is an apocalyptic number.

66667410701111 is a deficient number, since it is larger than the sum of its proper divisors (10512625317577).

66667410701111 is a wasteful number, since it uses less digits than its factorization.

66667410701111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804763942.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 66667410701111 in words is "sixty-six trillion, six hundred sixty-seven billion, four hundred ten million, seven hundred one thousand, one hundred eleven".