160991712 has 240 divisors, whose sum is σ = 570810240. Its totient is φ = 43483392.

The previous prime is 160991659. The next prime is 160991729. The reversal of 160991712 is 217199061.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 344503 + ... + 344969.

It is an arithmetic number, because the mean of its divisors is an integer number (2378376).

Almost surely, 2^160991712 is an apocalyptic number.

160991712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160991712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285405120).

160991712 is an abundant number, since it is smaller than the sum of its proper divisors (409818528).

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

160991712 is a wasteful number, since it uses less digits than its factorization.

160991712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 36.

The square root of 160991712 is about 12688.2509432940. The cubic root of 160991712 is about 544.0028474476.

The spelling of 160991712 in words is "one hundred sixty million, nine hundred ninety-one thousand, seven hundred twelve".