1662912888137 has 2 divisors, whose sum is σ = 1662912888138. Its totient is φ = 1662912888136.

The previous prime is 1662912888079. The next prime is 1662912888139. The reversal of 1662912888137 is 7318882192661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1184486132281 + 478426755856 = 1088341^2 + 691684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1662912888137 - 2¹⁰ = 1662912887113 is a prime.

Together with 1662912888139, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1662912888137.

It is not a weakly prime, because it can be changed into another prime (1662912888139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831456444068 + 831456444069.

It is an arithmetic number, because the mean of its divisors is an integer number (831456444069).

Almost surely, 2^{1662912888137} is an apocalyptic number.

It is an amenable number.

1662912888137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662912888137 is an equidigital number, since it uses as much as digits as its factorization.

1662912888137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13934592, while the sum is 62.

The spelling of 1662912888137 in words is "one trillion, six hundred sixty-two billion, nine hundred twelve million, eight hundred eighty-eight thousand, one hundred thirty-seven".