1394165945611 has 2 divisors, whose sum is σ = 1394165945612. Its totient is φ = 1394165945610.

The previous prime is 1394165945519. The next prime is 1394165945629. The reversal of 1394165945611 is 1165495614931.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1165495614931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1394165945611 - 2⁹ = 1394165945099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1394165945681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697082972805 + 697082972806.

It is an arithmetic number, because the mean of its divisors is an integer number (697082972806).

Almost surely, 2^{1394165945611} is an apocalyptic number.

1394165945611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394165945611 is an equidigital number, since it uses as much as digits as its factorization.

1394165945611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3499200, while the sum is 55.

The spelling of 1394165945611 in words is "one trillion, three hundred ninety-four billion, one hundred sixty-five million, nine hundred forty-five thousand, six hundred eleven".