667144390359 has 32 divisors (see below), whose sum is σ = 930952673280. Its totient is φ = 424526124800.

The previous prime is 667144390337. The next prime is 667144390439. The reversal of 667144390359 is 953093441766.

It is a cyclic number.

It is not a de Polignac number, because 667144390359 - 2⁵ = 667144390327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667144390299 and 667144390308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667144392359) 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 in 31 ways as a sum of consecutive naturals, for example, 16797094 + ... + 16836764.

It is an arithmetic number, because the mean of its divisors is an integer number (29092271040).

Almost surely, 2^667144390359 is an apocalyptic number.

667144390359 is a deficient number, since it is larger than the sum of its proper divisors (263808282921).

667144390359 is a wasteful number, since it uses less digits than its factorization.

667144390359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42671.

The product of its (nonzero) digits is 14696640, while the sum is 57.

The spelling of 667144390359 in words is "six hundred sixty-seven billion, one hundred forty-four million, three hundred ninety thousand, three hundred fifty-nine".