160991610 has 64 divisors (see below), whose sum is σ = 417432960. Its totient is φ = 39502080.

The previous prime is 160991603. The next prime is 160991639. The reversal of 160991610 is 16199061.

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 31 ways as a sum of consecutive naturals, for example, 198105 + ... + 198915.

It is an arithmetic number, because the mean of its divisors is an integer number (6522390).

Almost surely, 2^160991610 is an apocalyptic number.

160991610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 160991610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208716480).

160991610 is an abundant number, since it is smaller than the sum of its proper divisors (256441350).

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

160991610 is a wasteful number, since it uses less digits than its factorization.

160991610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 160991610 is about 12688.2469238268. The cubic root of 160991610 is about 544.0027325591.

The spelling of 160991610 in words is "one hundred sixty million, nine hundred ninety-one thousand, six hundred ten".