1667260513 has 2 divisors, whose sum is σ = 1667260514. Its totient is φ = 1667260512.

The previous prime is 1667260487. The next prime is 1667260519. The reversal of 1667260513 is 3150627661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1624331809 + 42928704 = 40303^2 + 6552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1667260513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1667260519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 833630256 + 833630257.

It is an arithmetic number, because the mean of its divisors is an integer number (833630257).

Almost surely, 2^1667260513 is an apocalyptic number.

It is an amenable number.

1667260513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1667260513 is an equidigital number, since it uses as much as digits as its factorization.

1667260513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1667260513 is about 40832.1015011474. The cubic root of 1667260513 is about 1185.7719013118.

The spelling of 1667260513 in words is "one billion, six hundred sixty-seven million, two hundred sixty thousand, five hundred thirteen".