663116013 has 48 divisors (see below), whose sum is σ = 1158094080. Its totient is φ = 357426432.

The previous prime is 663115993. The next prime is 663116021. The reversal of 663116013 is 310611366.

It is a happy number.

663116013 is a `hidden beast` number, since 6 + 631 + 16 + 0 + 13 = 666.

It is not a de Polignac number, because 663116013 - 2¹⁴ = 663099629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663116053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102643 + ... + 108911.

It is an arithmetic number, because the mean of its divisors is an integer number (24126960).

Almost surely, 2^663116013 is an apocalyptic number.

663116013 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

663116013 is a deficient number, since it is larger than the sum of its proper divisors (494978067).

663116013 is a wasteful number, since it uses less digits than its factorization.

663116013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6375 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 663116013 is about 25751.0390664144. The cubic root of 663116013 is about 872.0268123822.

Adding to 663116013 its reverse (310611366), we get a palindrome (973727379).

The spelling of 663116013 in words is "six hundred sixty-three million, one hundred sixteen thousand, thirteen".