63340661 has 8 divisors (see below), whose sum is σ = 67670880. Its totient is φ = 59110128.

The previous prime is 63340637. The next prime is 63340679. The reversal of 63340661 is 16604336.

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-63340661 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 (63340601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23606 + ... + 26151.

It is an arithmetic number, because the mean of its divisors is an integer number (8458860).

Almost surely, 2^63340661 is an apocalyptic number.

It is an amenable number.

63340661 is a deficient number, since it is larger than the sum of its proper divisors (4330219).

63340661 is a wasteful number, since it uses less digits than its factorization.

63340661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49843.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 63340661 is about 7958.6846274997. The cubic root of 63340661 is about 398.6216327987.

Adding to 63340661 its reverse (16604336), we get a palindrome (79944997).

The spelling of 63340661 in words is "sixty-three million, three hundred forty thousand, six hundred sixty-one".