1966109713 has 16 divisors (see below), whose sum is σ = 2077981056. Its totient is φ = 1856574720.

The previous prime is 1966109711. The next prime is 1966109729. The reversal of 1966109713 is 3179016691.

It is not a de Polignac number, because 1966109713 - 2¹ = 1966109711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1966109713.

It is not an unprimeable number, because it can be changed into a prime (1966109711) 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 15 ways as a sum of consecutive naturals, for example, 718558 + ... + 721288.

It is an arithmetic number, because the mean of its divisors is an integer number (129873816).

Almost surely, 2^1966109713 is an apocalyptic number.

It is an amenable number.

1966109713 is a deficient number, since it is larger than the sum of its proper divisors (111871343).

1966109713 is a wasteful number, since it uses less digits than its factorization.

1966109713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1966109713 is about 44340.8357273518. The cubic root of 1966109713 is about 1252.7639560397.

The spelling of 1966109713 in words is "one billion, nine hundred sixty-six million, one hundred nine thousand, seven hundred thirteen".