67166963 has 2 divisors, whose sum is σ = 67166964. Its totient is φ = 67166962.

The previous prime is 67166873. The next prime is 67166977. The reversal of 67166963 is 36966176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67166963 - 2¹² = 67162867 is a prime.

It is a super-2 number, since 2×67166963² = 9022801837286738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67166993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33583481 + 33583482.

It is an arithmetic number, because the mean of its divisors is an integer number (33583482).

Almost surely, 2^67166963 is an apocalyptic number.

67166963 is a deficient number, since it is larger than the sum of its proper divisors (1).

67166963 is an equidigital number, since it uses as much as digits as its factorization.

67166963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 44.

The square root of 67166963 is about 8195.5453143766. The cubic root of 67166963 is about 406.4919074271.

The spelling of 67166963 in words is "sixty-seven million, one hundred sixty-six thousand, nine hundred sixty-three".