159190091887 has 2 divisors, whose sum is σ = 159190091888. Its totient is φ = 159190091886.

The previous prime is 159190091821. The next prime is 159190091899. The reversal of 159190091887 is 788190091951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159190091887 - 2⁷ = 159190091759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159190095887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79595045943 + 79595045944.

It is an arithmetic number, because the mean of its divisors is an integer number (79595045944).

Almost surely, 2^159190091887 is an apocalyptic number.

159190091887 is a deficient number, since it is larger than the sum of its proper divisors (1).

159190091887 is an equidigital number, since it uses as much as digits as its factorization.

159190091887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 58.

The spelling of 159190091887 in words is "one hundred fifty-nine billion, one hundred ninety million, ninety-one thousand, eight hundred eighty-seven".