149666839967 has 2 divisors, whose sum is σ = 149666839968. Its totient is φ = 149666839966.

The previous prime is 149666839921. The next prime is 149666839979. The reversal of 149666839967 is 769938666941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149666839967 - 2²⁶ = 149599731103 is a prime.

It is a super-2 number, since 2×149666839967² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 149666839894 and 149666839903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149666839067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74833419983 + 74833419984.

It is an arithmetic number, because the mean of its divisors is an integer number (74833419984).

Almost surely, 2^149666839967 is an apocalyptic number.

149666839967 is a deficient number, since it is larger than the sum of its proper divisors (1).

149666839967 is an equidigital number, since it uses as much as digits as its factorization.

149666839967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 634894848, while the sum is 74.

The spelling of 149666839967 in words is "one hundred forty-nine billion, six hundred sixty-six million, eight hundred thirty-nine thousand, nine hundred sixty-seven".