161067830 has 32 divisors (see below), whose sum is σ = 361463040. Its totient is φ = 50202720.

The previous prime is 161067757. The next prime is 161067871. The reversal of 161067830 is 38760161.

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, 103820 + ... + 105359.

It is an arithmetic number, because the mean of its divisors is an integer number (11295720).

Almost surely, 2^161067830 is an apocalyptic number.

161067830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161067830 is an abundant number, since it is smaller than the sum of its proper divisors (200395210).

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

161067830 is a wasteful number, since it uses less digits than its factorization.

161067830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209204.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 161067830 is about 12691.2501354280. The cubic root of 161067830 is about 544.0885700476.

The spelling of 161067830 in words is "one hundred sixty-one million, sixty-seven thousand, eight hundred thirty".