667214337401 has 2 divisors, whose sum is σ = 667214337402. Its totient is φ = 667214337400.

The previous prime is 667214337341. The next prime is 667214337523. The reversal of 667214337401 is 104733412766.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 458274841600 + 208939495801 = 676960^2 + 457099^2 .

It is a cyclic number.

It is not a de Polignac number, because 667214337401 - 2⁶ = 667214337337 is a prime.

It is not a weakly prime, because it can be changed into another prime (667214337001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333607168700 + 333607168701.

It is an arithmetic number, because the mean of its divisors is an integer number (333607168701).

Almost surely, 2^667214337401 is an apocalyptic number.

It is an amenable number.

667214337401 is a deficient number, since it is larger than the sum of its proper divisors (1).

667214337401 is an equidigital number, since it uses as much as digits as its factorization.

667214337401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 667214337401 in words is "six hundred sixty-seven billion, two hundred fourteen million, three hundred thirty-seven thousand, four hundred one".