158220771623 has 2 divisors, whose sum is σ = 158220771624. Its totient is φ = 158220771622.

The previous prime is 158220771571. The next prime is 158220771661. The reversal of 158220771623 is 326177022851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158220771623 - 2⁶ = 158220771559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158220771673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79110385811 + 79110385812.

It is an arithmetic number, because the mean of its divisors is an integer number (79110385812).

Almost surely, 2^158220771623 is an apocalyptic number.

158220771623 is a deficient number, since it is larger than the sum of its proper divisors (1).

158220771623 is an equidigital number, since it uses as much as digits as its factorization.

158220771623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 158220771623 in words is "one hundred fifty-eight billion, two hundred twenty million, seven hundred seventy-one thousand, six hundred twenty-three".