63667300625 has 20 divisors (see below), whose sum is σ = 79784313972. Its totient is φ = 50789376000.

The previous prime is 63667300601. The next prime is 63667300637. The reversal of 63667300625 is 52600376636.

It can be written as a sum of positive squares in 10 ways, for example, as 55546947856 + 8120352769 = 235684^2 + 90113^2 .

It is not a de Polignac number, because 63667300625 - 2²⁸ = 63398865169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76337 + ... + 364913.

Almost surely, 2^63667300625 is an apocalyptic number.

It is an amenable number.

63667300625 is a deficient number, since it is larger than the sum of its proper divisors (16117013347).

63667300625 is an equidigital number, since it uses as much as digits as its factorization.

63667300625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288950 (or 288935 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 44.

The spelling of 63667300625 in words is "sixty-three billion, six hundred sixty-seven million, three hundred thousand, six hundred twenty-five".