1661000114 has 8 divisors (see below), whose sum is σ = 2577414060. Its totient is φ = 801862096.

The previous prime is 1661000111. The next prime is 1661000123. The reversal of 1661000114 is 4110001661.

It can be written as a sum of positive squares in 2 ways, for example, as 1450314889 + 210685225 = 38083^2 + 14515^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1661000111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14318909 + ... + 14319024.

Almost surely, 2^1661000114 is an apocalyptic number.

1661000114 is a deficient number, since it is larger than the sum of its proper divisors (916413946).

1661000114 is a wasteful number, since it uses less digits than its factorization.

1661000114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28637964.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1661000114 is about 40755.3691432184. The cubic root of 1661000114 is about 1184.2858875818.

Adding to 1661000114 its reverse (4110001661), we get a palindrome (5771001775).

The spelling of 1661000114 in words is "one billion, six hundred sixty-one million, one hundred fourteen", and thus it is an aban number.