63332681 has 8 divisors (see below), whose sum is σ = 66864000. Its totient is φ = 59821200.

The previous prime is 63332671. The next prime is 63332693. The reversal of 63332681 is 18623336.

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-63332681 is a prime.

It is a super-2 number, since 2×63332681² = 8022056965295522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63332611) 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, 1856 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (8358000).

Almost surely, 2^63332681 is an apocalyptic number.

It is an amenable number.

63332681 is a deficient number, since it is larger than the sum of its proper divisors (3531319).

63332681 is a wasteful number, since it uses less digits than its factorization.

63332681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9919.

The product of its digits is 15552, while the sum is 32.

The square root of 63332681 is about 7958.1832725818. The cubic root of 63332681 is about 398.6048919239.

The spelling of 63332681 in words is "sixty-three million, three hundred thirty-two thousand, six hundred eighty-one".