1662912888079 has 2 divisors, whose sum is σ = 1662912888080. Its totient is φ = 1662912888078.

The previous prime is 1662912888067. The next prime is 1662912888137. The reversal of 1662912888079 is 9708882192661.

It is a weak prime.

It is an emirp because it is prime and its reverse (9708882192661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1662912888079 - 2¹⁵ = 1662912855311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1662912888059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 831456444039 + 831456444040.

It is an arithmetic number, because the mean of its divisors is an integer number (831456444040).

Almost surely, 2^{1662912888079} is an apocalyptic number.

1662912888079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1662912888079 is an equidigital number, since it uses as much as digits as its factorization.

1662912888079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41803776, while the sum is 67.

The spelling of 1662912888079 in words is "one trillion, six hundred sixty-two billion, nine hundred twelve million, eight hundred eighty-eight thousand, seventy-nine".