160861980 has 48 divisors (see below), whose sum is σ = 474122880. Its totient is φ = 40638528.

The previous prime is 160861963. The next prime is 160861991. The reversal of 160861980 is 89168061.

160861980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69414 + ... + 71693.

It is an arithmetic number, because the mean of its divisors is an integer number (9877560).

Almost surely, 2^160861980 is an apocalyptic number.

160861980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

160861980 is an abundant number, since it is smaller than the sum of its proper divisors (313260900).

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

160861980 is a wasteful number, since it uses less digits than its factorization.

160861980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141138 (or 141136 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 160861980 is about 12683.1376244209. The cubic root of 160861980 is about 543.8566835197.

The spelling of 160861980 in words is "one hundred sixty million, eight hundred sixty-one thousand, nine hundred eighty".