66112140254997 has 8 divisors (see below), whose sum is σ = 89139964389120. Its totient is φ = 43579538145440.

The previous prime is 66112140254981. The next prime is 66112140255023. The reversal of 66112140254997 is 79945204121166.

66112140254997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66112140254997 - 2⁴ = 66112140254981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66112140254947) 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 7 ways as a sum of consecutive naturals, for example, 123805505829 + ... + 123805506362.

It is an arithmetic number, because the mean of its divisors is an integer number (11142495548640).

Almost surely, 2^{66112140254997} is an apocalyptic number.

It is an amenable number.

66112140254997 is a deficient number, since it is larger than the sum of its proper divisors (23027824134123).

66112140254997 is a wasteful number, since it uses less digits than its factorization.

66112140254997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247611012283.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 66112140254997 in words is "sixty-six trillion, one hundred twelve billion, one hundred forty million, two hundred fifty-four thousand, nine hundred ninety-seven".