161110986 has 16 divisors (see below), whose sum is σ = 325545024. Its totient is φ = 53149824.

The previous prime is 161110969. The next prime is 161110991. The reversal of 161110986 is 689011161.

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, 137830 + ... + 138993.

It is an arithmetic number, because the mean of its divisors is an integer number (20346564).

Almost surely, 2^161110986 is an apocalyptic number.

161110986 is an abundant number, since it is smaller than the sum of its proper divisors (164434038).

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

161110986 is a wasteful number, since it uses less digits than its factorization.

161110986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276925.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 161110986 is about 12692.9502480708. The cubic root of 161110986 is about 544.1371594929.

The spelling of 161110986 in words is "one hundred sixty-one million, one hundred ten thousand, nine hundred eighty-six".