1664014043 has 16 divisors (see below), whose sum is σ = 1823199840. Its totient is φ = 1512462336.

The previous prime is 1664014039. The next prime is 1664014103. The reversal of 1664014043 is 3404104661.

It is a cyclic number.

It is not a de Polignac number, because 1664014043 - 2² = 1664014039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1664013997 and 1664014015.

It is not an unprimeable number, because it can be changed into a prime (1664014013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52271 + ... + 77847.

It is an arithmetic number, because the mean of its divisors is an integer number (113949990).

Almost surely, 2^1664014043 is an apocalyptic number.

1664014043 is a deficient number, since it is larger than the sum of its proper divisors (159185797).

1664014043 is a wasteful number, since it uses less digits than its factorization.

1664014043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25726.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1664014043 is about 40792.3282370595. The cubic root of 1664014043 is about 1185.0017608738.

The spelling of 1664014043 in words is "one billion, six hundred sixty-four million, fourteen thousand, forty-three".