160915591 has 8 divisors (see below), whose sum is σ = 170754480. Its totient is φ = 151118208.

The previous prime is 160915583. The next prime is 160915609. The reversal of 160915591 is 195519061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 160915591 - 2³ = 160915583 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160915591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160915571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 18073.

It is an arithmetic number, because the mean of its divisors is an integer number (21344310).

Almost surely, 2^160915591 is an apocalyptic number.

160915591 is a deficient number, since it is larger than the sum of its proper divisors (9838889).

160915591 is a wasteful number, since it uses less digits than its factorization.

160915591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753.

The product of its (nonzero) digits is 12150, while the sum is 37.

The square root of 160915591 is about 12685.2509238091. The cubic root of 160915591 is about 543.9170944430.

The spelling of 160915591 in words is "one hundred sixty million, nine hundred fifteen thousand, five hundred ninety-one".