63565225164 has 216 divisors, whose sum is σ = 201803478240. Its totient is φ = 16503201792.

The previous prime is 63565225121. The next prime is 63565225177. The reversal of 63565225164 is 46152256536.

63565225164 is a `hidden beast` number, since 6 + 3 + 565 + 2 + 25 + 1 + 64 = 666.

63565225164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2096964 + ... + 2127060.

Almost surely, 2^63565225164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63565225164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100901739120).

63565225164 is an abundant number, since it is smaller than the sum of its proper divisors (138238253076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63565225164 is a wasteful number, since it uses less digits than its factorization.

63565225164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30177 (or 30155 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 63565225164 in words is "sixty-three billion, five hundred sixty-five million, two hundred twenty-five thousand, one hundred sixty-four".