160419991 has 2 divisors, whose sum is σ = 160419992. Its totient is φ = 160419990.

The previous prime is 160419989. The next prime is 160420019. The reversal of 160419991 is 199914061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 160419991 - 2¹ = 160419989 is a prime.

Together with 160419989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160419911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80209995 + 80209996.

It is an arithmetic number, because the mean of its divisors is an integer number (80209996).

Almost surely, 2^160419991 is an apocalyptic number.

160419991 is a deficient number, since it is larger than the sum of its proper divisors (1).

160419991 is an equidigital number, since it uses as much as digits as its factorization.

160419991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 160419991 is about 12665.7013623407. The cubic root of 160419991 is about 543.3581212005.

The spelling of 160419991 in words is "one hundred sixty million, four hundred nineteen thousand, nine hundred ninety-one".