159221922073 has 2 divisors, whose sum is σ = 159221922074. Its totient is φ = 159221922072.

The previous prime is 159221922019. The next prime is 159221922127. The reversal of 159221922073 is 370229122951.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (159221922019) and next prime (159221922127).

It can be written as a sum of positive squares in only one way, i.e., 152062562304 + 7159359769 = 389952^2 + 84613^2 .

It is a cyclic number.

It is not a de Polignac number, because 159221922073 - 2¹³ = 159221913881 is a prime.

It is not a weakly prime, because it can be changed into another prime (159221952073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79610961036 + 79610961037.

It is an arithmetic number, because the mean of its divisors is an integer number (79610961037).

Almost surely, 2^159221922073 is an apocalyptic number.

It is an amenable number.

159221922073 is a deficient number, since it is larger than the sum of its proper divisors (1).

159221922073 is an equidigital number, since it uses as much as digits as its factorization.

159221922073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 159221922073 in words is "one hundred fifty-nine billion, two hundred twenty-one million, nine hundred twenty-two thousand, seventy-three".