667214482541 has 2 divisors, whose sum is σ = 667214482542. Its totient is φ = 667214482540.

The previous prime is 667214482499. The next prime is 667214482577. The reversal of 667214482541 is 145284412766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645819569641 + 21394912900 = 803629^2 + 146270^2 .

It is a cyclic number.

It is not a de Polignac number, because 667214482541 - 2¹⁰ = 667214481517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667214482541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667214482241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333607241270 + 333607241271.

It is an arithmetic number, because the mean of its divisors is an integer number (333607241271).

Almost surely, 2^667214482541 is an apocalyptic number.

It is an amenable number.

667214482541 is a deficient number, since it is larger than the sum of its proper divisors (1).

667214482541 is an equidigital number, since it uses as much as digits as its factorization.

667214482541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 50.

The spelling of 667214482541 in words is "six hundred sixty-seven billion, two hundred fourteen million, four hundred eighty-two thousand, five hundred forty-one".