63618696 has 80 divisors (see below), whose sum is σ = 183997440. Its totient is φ = 20515680.

The previous prime is 63618691. The next prime is 63618701. The reversal of 63618696 is 69681636.

63618696 is a `hidden beast` number, since 636 + 1 + 8 + 6 + 9 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (63618691) and next prime (63618701).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63618691) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18505 + ... + 21671.

It is an arithmetic number, because the mean of its divisors is an integer number (2299968).

Almost surely, 2^63618696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63618696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91998720).

63618696 is an abundant number, since it is smaller than the sum of its proper divisors (120378744).

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

63618696 is a wasteful number, since it uses less digits than its factorization.

63618696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3203 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 63618696 is about 7976.1328975889. The cubic root of 63618696 is about 399.2040338118.

The spelling of 63618696 in words is "sixty-three million, six hundred eighteen thousand, six hundred ninety-six".