158370490997 has 2 divisors, whose sum is σ = 158370490998. Its totient is φ = 158370490996.

The previous prime is 158370490933. The next prime is 158370491033. The reversal of 158370490997 is 799094073851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126432869476 + 31937621521 = 355574^2 + 178711^2 .

It is a cyclic number.

It is not a de Polignac number, because 158370490997 - 2⁶ = 158370490933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158370490907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79185245498 + 79185245499.

It is an arithmetic number, because the mean of its divisors is an integer number (79185245499).

Almost surely, 2^158370490997 is an apocalyptic number.

It is an amenable number.

158370490997 is a deficient number, since it is larger than the sum of its proper divisors (1).

158370490997 is an equidigital number, since it uses as much as digits as its factorization.

158370490997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 158370490997 in words is "one hundred fifty-eight billion, three hundred seventy million, four hundred ninety thousand, nine hundred ninety-seven".