1660131313 has 8 divisors (see below), whose sum is σ = 1714291200. Its totient is φ = 1606009440.

The previous prime is 1660131307. The next prime is 1660131337. The reversal of 1660131313 is 3131310661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660131313 - 2¹³ = 1660123121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1660131353) 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 7 ways as a sum of consecutive naturals, for example, 99156 + ... + 114682.

It is an arithmetic number, because the mean of its divisors is an integer number (214286400).

Almost surely, 2^1660131313 is an apocalyptic number.

It is an amenable number.

1660131313 is a deficient number, since it is larger than the sum of its proper divisors (54159887).

1660131313 is a wasteful number, since it uses less digits than its factorization.

1660131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19007.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1660131313 is about 40744.7090184726. The cubic root of 1660131313 is about 1184.0793677868.

Adding to 1660131313 its reverse (3131310661), we get a palindrome (4791441974).

The spelling of 1660131313 in words is "one billion, six hundred sixty million, one hundred thirty-one thousand, three hundred thirteen".