161112663 has 12 divisors (see below), whose sum is σ = 237670368. Its totient is φ = 105122880.

The previous prime is 161112649. The next prime is 161112683. The reversal of 161112663 is 366211161.

161112663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161112663 - 2¹⁴ = 161096279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161112613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190018 + ... + 190863.

It is an arithmetic number, because the mean of its divisors is an integer number (19805864).

Almost surely, 2^161112663 is an apocalyptic number.

161112663 is a deficient number, since it is larger than the sum of its proper divisors (76557705).

161112663 is a wasteful number, since it uses less digits than its factorization.

161112663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380934 (or 380931 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 161112663 is about 12693.0163081909. The cubic root of 161112663 is about 544.1390474561.

The spelling of 161112663 in words is "one hundred sixty-one million, one hundred twelve thousand, six hundred sixty-three".