63016643 has 4 divisors (see below), whose sum is σ = 63070920. Its totient is φ = 62962368.

The previous prime is 63016621. The next prime is 63016691. The reversal of 63016643 is 34661036.

63016643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63016643 - 2⁶ = 63016579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63016693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25358 + ... + 27731.

It is an arithmetic number, because the mean of its divisors is an integer number (15767730).

Almost surely, 2^63016643 is an apocalyptic number.

63016643 is a deficient number, since it is larger than the sum of its proper divisors (54277).

63016643 is a wasteful number, since it uses less digits than its factorization.

63016643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54276.

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

The square root of 63016643 is about 7938.3022744161. The cubic root of 63016643 is about 397.9407565666.

Adding to 63016643 its reverse (34661036), we get a palindrome (97677679).

The spelling of 63016643 in words is "sixty-three million, sixteen thousand, six hundred forty-three".