161068920 has 32 divisors (see below), whose sum is σ = 483207120. Its totient is φ = 42951680.

The previous prime is 161068889. The next prime is 161068933. The reversal of 161068920 is 29860161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671001 + ... + 671240.

Almost surely, 2^161068920 is an apocalyptic number.

161068920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161068920 is an abundant number, since it is smaller than the sum of its proper divisors (322138200).

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

161068920 is a wasteful number, since it uses less digits than its factorization.

161068920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342255 (or 1342251 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 161068920 is about 12691.2930783274. The cubic root of 161068920 is about 544.0897973881.

The spelling of 161068920 in words is "one hundred sixty-one million, sixty-eight thousand, nine hundred twenty".