1661105162 has 8 divisors (see below), whose sum is σ = 2499774816. Its totient is φ = 827846892.

The previous prime is 1661105141. The next prime is 1661105189. The reversal of 1661105162 is 2615011661.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352078 + ... + 1353305.

It is an arithmetic number, because the mean of its divisors is an integer number (312471852).

Almost surely, 2^1661105162 is an apocalyptic number.

1661105162 is a deficient number, since it is larger than the sum of its proper divisors (838669654).

1661105162 is a wasteful number, since it uses less digits than its factorization.

1661105162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705692.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 1661105162 is about 40756.6578855529. The cubic root of 1661105162 is about 1184.3108533118.

The spelling of 1661105162 in words is "one billion, six hundred sixty-one million, one hundred five thousand, one hundred sixty-two".