63120663 has 6 divisors (see below), whose sum is σ = 91174304. Its totient is φ = 42080436.

The previous prime is 63120653. The next prime is 63120667. The reversal of 63120663 is 36602136.

63120663 is a `hidden beast` number, since 631 + 20 + 6 + 6 + 3 = 666.

63120663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63120663 - 2⁶ = 63120599 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 (63120667) 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 5 ways as a sum of consecutive naturals, for example, 3506695 + ... + 3506712.

Almost surely, 2^63120663 is an apocalyptic number.

63120663 is a deficient number, since it is larger than the sum of its proper divisors (28053641).

63120663 is a wasteful number, since it uses less digits than its factorization.

63120663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013413 (or 7013410 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 63120663 is about 7944.8513516617. The cubic root of 63120663 is about 398.1595931601.

Adding to 63120663 its reverse (36602136), we get a palindrome (99722799).

The spelling of 63120663 in words is "sixty-three million, one hundred twenty thousand, six hundred sixty-three".