66872275118107 has 2 divisors, whose sum is σ = 66872275118108. Its totient is φ = 66872275118106.

The previous prime is 66872275118023. The next prime is 66872275118119. The reversal of 66872275118107 is 70181157227866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66872275118107 - 2⁷ = 66872275117979 is a prime.

It is a super-5 number, since 5×66872275118107⁵ (a number of 70 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (66872275118197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33436137559053 + 33436137559054.

It is an arithmetic number, because the mean of its divisors is an integer number (33436137559054).

Almost surely, 2^{66872275118107} is an apocalyptic number.

66872275118107 is a deficient number, since it is larger than the sum of its proper divisors (1).

66872275118107 is an equidigital number, since it uses as much as digits as its factorization.

66872275118107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15805440, while the sum is 61.

The spelling of 66872275118107 in words is "sixty-six trillion, eight hundred seventy-two billion, two hundred seventy-five million, one hundred eighteen thousand, one hundred seven".