86666666666663 has 2 divisors, whose sum is σ = 86666666666664. Its totient is φ = 86666666666662.

The previous prime is 86666666666609. The next prime is 86666666666717. The reversal of 86666666666663 is 36666666666668.

It is a balanced prime because it is at equal distance from previous prime (86666666666609) and next prime (86666666666717).

It is a cyclic number.

It is not a de Polignac number, because 86666666666663 - 2³⁰ = 86665592924839 is a prime.

It is a super-2 number, since 2×86666666666663² (a number of 29 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86666666669663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43333333333331 + 43333333333332.

It is an arithmetic number, because the mean of its divisors is an integer number (43333333333332).

Almost surely, 2^{86666666666663} is an apocalyptic number.

86666666666663 is a deficient number, since it is larger than the sum of its proper divisors (1).

86666666666663 is an equidigital number, since it uses as much as digits as its factorization.

86666666666663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52242776064, while the sum is 83.

The spelling of 86666666666663 in words is "eighty-six trillion, six hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-three".