161055066 has 8 divisors (see below), whose sum is σ = 322110144. Its totient is φ = 53685020.

The previous prime is 161055061. The next prime is 161055079. The reversal of 161055066 is 660550161.

It is a sphenic number, since it is the product of 3 distinct primes.

161055066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (161055061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13421250 + ... + 13421261.

It is an arithmetic number, because the mean of its divisors is an integer number (40263768).

Almost surely, 2^161055066 is an apocalyptic number.

161055066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161055066 is a wasteful number, since it uses less digits than its factorization.

161055066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26842516.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 161055066 is about 12690.7472593224. The cubic root of 161055066 is about 544.0741973659.

The spelling of 161055066 in words is "one hundred sixty-one million, fifty-five thousand, sixty-six".