63115660 has 12 divisors (see below), whose sum is σ = 132542928. Its totient is φ = 25246256.

The previous prime is 63115649. The next prime is 63115667. The reversal of 63115660 is 6651136.

It is not an unprimeable number, because it can be changed into a prime (63115667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577872 + ... + 1577911.

It is an arithmetic number, because the mean of its divisors is an integer number (11045244).

Almost surely, 2^63115660 is an apocalyptic number.

It is an amenable number.

63115660 is an abundant number, since it is smaller than the sum of its proper divisors (69427268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63115660 is a wasteful number, since it uses less digits than its factorization.

63115660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155792 (or 3155790 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 63115660 is about 7944.5364874233. The cubic root of 63115660 is about 398.1490733874.

Adding to 63115660 its reverse (6651136), we get a palindrome (69766796).

The spelling of 63115660 in words is "sixty-three million, one hundred fifteen thousand, six hundred sixty".