1664060013 has 48 divisors (see below), whose sum is σ = 3047616000. Its totient is φ = 849774240.

The previous prime is 1664060009. The next prime is 1664060017. The reversal of 1664060013 is 3100604661.

1664060013 is a `hidden beast` number, since 1 + 6 + 6 + 40 + 600 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (1664060009) and next prime (1664060017).

It is not a de Polignac number, because 1664060013 - 2² = 1664060009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664060017) 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 47 ways as a sum of consecutive naturals, for example, 20538 + ... + 61236.

It is an arithmetic number, because the mean of its divisors is an integer number (63492000).

Almost surely, 2^1664060013 is an apocalyptic number.

It is an amenable number.

1664060013 is a deficient number, since it is larger than the sum of its proper divisors (1383555987).

1664060013 is a wasteful number, since it uses less digits than its factorization.

1664060013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40782 (or 40779 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1664060013 is about 40792.8916969611. The cubic root of 1664060013 is about 1185.0126730472.

Adding to 1664060013 its reverse (3100604661), we get a palindrome (4764664674).

The spelling of 1664060013 in words is "one billion, six hundred sixty-four million, sixty thousand, thirteen".