156922145797 has 2 divisors, whose sum is σ = 156922145798. Its totient is φ = 156922145796.

The previous prime is 156922145789. The next prime is 156922145801. The reversal of 156922145797 is 797541229651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156630726756 + 291419041 = 395766^2 + 17071^2 .

It is a cyclic number.

It is not a de Polignac number, because 156922145797 - 2³ = 156922145789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156922145707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78461072898 + 78461072899.

It is an arithmetic number, because the mean of its divisors is an integer number (78461072899).

Almost surely, 2^156922145797 is an apocalyptic number.

It is an amenable number.

156922145797 is a deficient number, since it is larger than the sum of its proper divisors (1).

156922145797 is an equidigital number, since it uses as much as digits as its factorization.

156922145797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9525600, while the sum is 58.

The spelling of 156922145797 in words is "one hundred fifty-six billion, nine hundred twenty-two million, one hundred forty-five thousand, seven hundred ninety-seven".