667367104661863 has 2 divisors, whose sum is σ = 667367104661864. Its totient is φ = 667367104661862.

The previous prime is 667367104661839. The next prime is 667367104661893. The reversal of 667367104661863 is 368166401763766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667367104661863 - 2²⁵ = 667367071107431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667367104661792 and 667367104661801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667367104661893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333683552330931 + 333683552330932.

It is an arithmetic number, because the mean of its divisors is an integer number (333683552330932).

Almost surely, 2^{667367104661863} is an apocalyptic number.

667367104661863 is a deficient number, since it is larger than the sum of its proper divisors (1).

667367104661863 is an equidigital number, since it uses as much as digits as its factorization.

667367104661863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658409472, while the sum is 70.

The spelling of 667367104661863 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred four million, six hundred sixty-one thousand, eight hundred sixty-three".