1661842714 has 16 divisors (see below), whose sum is σ = 2998814400. Its totient is φ = 674733024.

The previous prime is 1661842697. The next prime is 1661842727. The reversal of 1661842714 is 4172481661.

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, 3123499 + ... + 3124030.

It is an arithmetic number, because the mean of its divisors is an integer number (187425900).

Almost surely, 2^1661842714 is an apocalyptic number.

1661842714 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1661842714 is a deficient number, since it is larger than the sum of its proper divisors (1336971686).

1661842714 is a wasteful number, since it uses less digits than its factorization.

1661842714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6247557.

The product of its digits is 64512, while the sum is 40.

The square root of 1661842714 is about 40765.7051208488. The cubic root of 1661842714 is about 1184.4861104459.

The spelling of 1661842714 in words is "one billion, six hundred sixty-one million, eight hundred forty-two thousand, seven hundred fourteen".