157366671899797 has 2 divisors, whose sum is σ = 157366671899798. Its totient is φ = 157366671899796.

The previous prime is 157366671899683. The next prime is 157366671899803. The reversal of 157366671899797 is 797998176663751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80043333529636 + 77323338370161 = 8946694^2 + 8793369^2 .

It is a cyclic number.

It is not a de Polignac number, because 157366671899797 - 2¹⁹ = 157366671375509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157366671890797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78683335949898 + 78683335949899.

It is an arithmetic number, because the mean of its divisors is an integer number (78683335949899).

Almost surely, 2^{157366671899797} is an apocalyptic number.

It is an amenable number.

157366671899797 is a deficient number, since it is larger than the sum of its proper divisors (1).

157366671899797 is an equidigital number, since it uses as much as digits as its factorization.

157366671899797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45368527680, while the sum is 91.

The spelling of 157366671899797 in words is "one hundred fifty-seven trillion, three hundred sixty-six billion, six hundred seventy-one million, eight hundred ninety-nine thousand, seven hundred ninety-seven".