1664410783 has 6 divisors (see below), whose sum is σ = 1936151376. Its totient is φ = 1426637772.

The previous prime is 1664410771. The next prime is 1664410793. The reversal of 1664410783 is 3870144661.

It is not a de Polignac number, because 1664410783 - 2²⁵ = 1630856351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664410723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16983735 + ... + 16983832.

It is an arithmetic number, because the mean of its divisors is an integer number (322691896).

Almost surely, 2^1664410783 is an apocalyptic number.

1664410783 is a deficient number, since it is larger than the sum of its proper divisors (271740593).

1664410783 is an equidigital number, since it uses as much as digits as its factorization.

1664410783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33967581 (or 33967574 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1664410783 is about 40797.1908714313. The cubic root of 1664410783 is about 1185.0959308001.

The spelling of 1664410783 in words is "one billion, six hundred sixty-four million, four hundred ten thousand, seven hundred eighty-three".