160899978 has 8 divisors (see below), whose sum is σ = 321799968. Its totient is φ = 53633324.

The previous prime is 160899931. The next prime is 160899989. The reversal of 160899978 is 879998061.

160899978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

160899978 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13408326 + ... + 13408337.

It is an arithmetic number, because the mean of its divisors is an integer number (40224996).

Almost surely, 2^160899978 is an apocalyptic number.

160899978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

160899978 is a wasteful number, since it uses less digits than its factorization.

160899978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26816668.

The product of its (nonzero) digits is 1959552, while the sum is 57.

The square root of 160899978 is about 12684.6355091504. The cubic root of 160899978 is about 543.8995025031.

The spelling of 160899978 in words is "one hundred sixty million, eight hundred ninety-nine thousand, nine hundred seventy-eight".