161166110 has 32 divisors (see below), whose sum is σ = 337804992. Its totient is φ = 54213120.

The previous prime is 161166101. The next prime is 161166127. The reversal of 161166110 is 11661161.

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, 18011 + ... + 25430.

It is an arithmetic number, because the mean of its divisors is an integer number (10556406).

Almost surely, 2^161166110 is an apocalyptic number.

161166110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161166110 is an abundant number, since it is smaller than the sum of its proper divisors (176638882).

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

161166110 is a wasteful number, since it uses less digits than its factorization.

161166110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43508.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 161166110 is about 12695.1215039479. The cubic root of 161166110 is about 544.1992111200.

The spelling of 161166110 in words is "one hundred sixty-one million, one hundred sixty-six thousand, one hundred ten".