161906060 has 12 divisors (see below), whose sum is σ = 340002768. Its totient is φ = 64762416.

The previous prime is 161906033. The next prime is 161906071. The reversal of 161906060 is 60609161.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4047632 + ... + 4047671.

It is an arithmetic number, because the mean of its divisors is an integer number (28333564).

Almost surely, 2^161906060 is an apocalyptic number.

161906060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161906060 is an abundant number, since it is smaller than the sum of its proper divisors (178096708).

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

161906060 is a wasteful number, since it uses less digits than its factorization.

161906060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095312 (or 8095310 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 161906060 is about 12724.2312144978. The cubic root of 161906060 is about 545.0307869150.

The spelling of 161906060 in words is "one hundred sixty-one million, nine hundred six thousand, sixty".