16145995961597 has 2 divisors, whose sum is σ = 16145995961598. Its totient is φ = 16145995961596.

The previous prime is 16145995961519. The next prime is 16145995961653. The reversal of 16145995961597 is 79516959954161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11980535386681 + 4165460574916 = 3461291^2 + 2040946^2 .

It is a cyclic number.

It is not a de Polignac number, because 16145995961597 - 2⁸ = 16145995961341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16145995961297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8072997980798 + 8072997980799.

It is an arithmetic number, because the mean of its divisors is an integer number (8072997980799).

Almost surely, 2^{16145995961597} is an apocalyptic number.

It is an amenable number.

16145995961597 is a deficient number, since it is larger than the sum of its proper divisors (1).

16145995961597 is an equidigital number, since it uses as much as digits as its factorization.

16145995961597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 826686000, while the sum is 77.

The spelling of 16145995961597 in words is "sixteen trillion, one hundred forty-five billion, nine hundred ninety-five million, nine hundred sixty-one thousand, five hundred ninety-seven".