158195016887 has 2 divisors, whose sum is σ = 158195016888. Its totient is φ = 158195016886.

The previous prime is 158195016877. The next prime is 158195016901. The reversal of 158195016887 is 788610591851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158195016887 - 2⁴ = 158195016871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158195016857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79097508443 + 79097508444.

It is an arithmetic number, because the mean of its divisors is an integer number (79097508444).

Almost surely, 2^158195016887 is an apocalyptic number.

158195016887 is a deficient number, since it is larger than the sum of its proper divisors (1).

158195016887 is an equidigital number, since it uses as much as digits as its factorization.

158195016887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 59.

The spelling of 158195016887 in words is "one hundred fifty-eight billion, one hundred ninety-five million, sixteen thousand, eight hundred eighty-seven".