16667666467 has 2 divisors, whose sum is σ = 16667666468. Its totient is φ = 16667666466.

The previous prime is 16667666399. The next prime is 16667666479. The reversal of 16667666467 is 76466676661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16667666467 - 2⁷ = 16667666339 is a prime.

It is a super-2 number, since 2×16667666467² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16367666467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8333833233 + 8333833234.

It is an arithmetic number, because the mean of its divisors is an integer number (8333833234).

Almost surely, 2^16667666467 is an apocalyptic number.

16667666467 is a deficient number, since it is larger than the sum of its proper divisors (1).

16667666467 is an equidigital number, since it uses as much as digits as its factorization.

16667666467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 61.

The spelling of 16667666467 in words is "sixteen billion, six hundred sixty-seven million, six hundred sixty-six thousand, four hundred sixty-seven".