667502237742013 has 4 divisors (see below), whose sum is σ = 668468232298048. Its totient is φ = 666536243185980.

The previous prime is 667502237742001. The next prime is 667502237742061. The reversal of 667502237742013 is 310247732205766.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 667502237742013 - 2⁴¹ = 665303214486461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667502237742113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482997276981 + ... + 482997278362.

It is an arithmetic number, because the mean of its divisors is an integer number (167117058074512).

Almost surely, 2^{667502237742013} is an apocalyptic number.

It is an amenable number.

667502237742013 is a deficient number, since it is larger than the sum of its proper divisors (965994556035).

667502237742013 is an equidigital number, since it uses as much as digits as its factorization.

667502237742013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965994556034.

The product of its (nonzero) digits is 17781120, while the sum is 55.

Adding to 667502237742013 its reverse (310247732205766), we get a palindrome (977749969947779).

The spelling of 667502237742013 in words is "six hundred sixty-seven trillion, five hundred two billion, two hundred thirty-seven million, seven hundred forty-two thousand, thirteen".