63616061 has 12 divisors (see below), whose sum is σ = 67536000. Its totient is φ = 59860080.

The previous prime is 63616037. The next prime is 63616067. The reversal of 63616061 is 16061636.

It is a de Polignac number, because none of the positive numbers 2^k-63616061 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 (63616067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41690 + ... + 43188.

It is an arithmetic number, because the mean of its divisors is an integer number (5628000).

Almost surely, 2^63616061 is an apocalyptic number.

It is an amenable number.

63616061 is a deficient number, since it is larger than the sum of its proper divisors (3919939).

63616061 is a wasteful number, since it uses less digits than its factorization.

63616061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 63616061 is about 7975.9677155816. The cubic root of 63616061 is about 399.1985222394.

Adding to 63616061 its reverse (16061636), we get a palindrome (79677697).

The spelling of 63616061 in words is "sixty-three million, six hundred sixteen thousand, sixty-one".