1660663013 has 8 divisors (see below), whose sum is σ = 1673239680. Its totient is φ = 1648123360.

The previous prime is 1660663007. The next prime is 1660663063. The reversal of 1660663013 is 3103660661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660663013 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 (1660663063) 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, 84356 + ... + 102162.

It is an arithmetic number, because the mean of its divisors is an integer number (209154960).

Almost surely, 2^1660663013 is an apocalyptic number.

It is an amenable number.

1660663013 is a deficient number, since it is larger than the sum of its proper divisors (12576667).

1660663013 is a wasteful number, since it uses less digits than its factorization.

1660663013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18507.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 1660663013 is about 40751.2332696815. The cubic root of 1660663013 is about 1184.2057649769.

The spelling of 1660663013 in words is "one billion, six hundred sixty million, six hundred sixty-three thousand, thirteen".