667367104727399 has 2 divisors, whose sum is σ = 667367104727400. Its totient is φ = 667367104727398.

The previous prime is 667367104727359. The next prime is 667367104727413. The reversal of 667367104727399 is 993727401763766.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 667367104727399 - 2¹⁶ = 667367104661863 is a prime.

It is a super-2 number, since 2×667367104727399² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667367104727339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333683552363699 + 333683552363700.

It is an arithmetic number, because the mean of its divisors is an integer number (333683552363700).

Almost surely, 2^{667367104727399} is an apocalyptic number.

667367104727399 is a deficient number, since it is larger than the sum of its proper divisors (1).

667367104727399 is an equidigital number, since it uses as much as digits as its factorization.

667367104727399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024568512, while the sum is 77.

The spelling of 667367104727399 in words is "six hundred sixty-seven trillion, three hundred sixty-seven billion, one hundred four million, seven hundred twenty-seven thousand, three hundred ninety-nine".