1658642880413 has 2 divisors, whose sum is σ = 1658642880414. Its totient is φ = 1658642880412.

The previous prime is 1658642880383. The next prime is 1658642880431. The reversal of 1658642880413 is 3140882468561.

Together with next prime (1658642880431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1658433991204 + 208889209 = 1287802^2 + 14453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1658642880413 - 2⁸ = 1658642880157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1658642880463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829321440206 + 829321440207.

It is an arithmetic number, because the mean of its divisors is an integer number (829321440207).

Almost surely, 2^{1658642880413} is an apocalyptic number.

It is an amenable number.

1658642880413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1658642880413 is an equidigital number, since it uses as much as digits as its factorization.

1658642880413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 1658642880413 in words is "one trillion, six hundred fifty-eight billion, six hundred forty-two million, eight hundred eighty thousand, four hundred thirteen".