160499821 has 8 divisors (see below), whose sum is σ = 173514080. Its totient is φ = 147942288.

The previous prime is 160499749. The next prime is 160499903. The reversal of 160499821 is 128994061.

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 160499821 - 2¹¹ = 160497773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160499321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113451 + ... + 114856.

It is an arithmetic number, because the mean of its divisors is an integer number (21689260).

Almost surely, 2^160499821 is an apocalyptic number.

It is an amenable number.

160499821 is a deficient number, since it is larger than the sum of its proper divisors (13014259).

160499821 is a wasteful number, since it uses less digits than its factorization.

160499821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228363.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 160499821 is about 12668.8523947515. The cubic root of 160499821 is about 543.4482369136.

The spelling of 160499821 in words is "one hundred sixty million, four hundred ninety-nine thousand, eight hundred twenty-one".