663225373125 has 120 divisors (see below), whose sum is σ = 1412257932800. Its totient is φ = 293407920000.

The previous prime is 663225373123. The next prime is 663225373177. The reversal of 663225373125 is 521373522366.

663225373125 is a `hidden beast` number, since 6 + 6 + 322 + 5 + 3 + 7 + 312 + 5 = 666.

It is not a de Polignac number, because 663225373125 - 2¹ = 663225373123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663225373123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 948951 + ... + 1492299.

Almost surely, 2^663225373125 is an apocalyptic number.

It is an amenable number.

663225373125 is an abundant number, since it is smaller than the sum of its proper divisors (749032559675).

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

663225373125 is a wasteful number, since it uses less digits than its factorization.

663225373125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543413 (or 543395 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 45.

The spelling of 663225373125 in words is "six hundred sixty-three billion, two hundred twenty-five million, three hundred seventy-three thousand, one hundred twenty-five".