158328399977999 has 2 divisors, whose sum is σ = 158328399978000. Its totient is φ = 158328399977998.

The previous prime is 158328399977971. The next prime is 158328399978031. The reversal of 158328399977999 is 999779993823851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158328399977999 - 2⁴⁰ = 157228888350223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158328399979999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79164199988999 + 79164199989000.

It is an arithmetic number, because the mean of its divisors is an integer number (79164199989000).

Almost surely, 2^{158328399977999} is an apocalyptic number.

158328399977999 is a deficient number, since it is larger than the sum of its proper divisors (1).

158328399977999 is an equidigital number, since it uses as much as digits as its factorization.

158328399977999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 149993907840, while the sum is 98.

The spelling of 158328399977999 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 ninety-nine".