158328399977971 has 2 divisors, whose sum is σ = 158328399977972. Its totient is φ = 158328399977970.

The previous prime is 158328399977927. The next prime is 158328399977999. The reversal of 158328399977971 is 179779993823851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158328399977971 - 2⁹ = 158328399977459 is a prime.

It is not a weakly prime, because it can be changed into another prime (158328399977471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79164199988985 + 79164199988986.

It is an arithmetic number, because the mean of its divisors is an integer number (79164199988986).

Almost surely, 2^{158328399977971} is an apocalyptic number.

158328399977971 is a deficient number, since it is larger than the sum of its proper divisors (1).

158328399977971 is an equidigital number, since it uses as much as digits as its factorization.

158328399977971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12962436480, while the sum is 88.

The spelling of 158328399977971 in words is "one hundred fifty-eight trillion, three hundred twenty-eight billion, three hundred ninety-nine million, nine hundred seventy-seven thousand, nine hundred seventy-one".