663143572425 has 48 divisors (see below), whose sum is σ = 1111547213568. Its totient is φ = 348822676800.

The previous prime is 663143572423. The next prime is 663143572499. The reversal of 663143572425 is 524275341366.

It is a happy number.

It is not a de Polignac number, because 663143572425 - 2¹ = 663143572423 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (663143572423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1394434 + ... + 1808516.

It is an arithmetic number, because the mean of its divisors is an integer number (23157233616).

Almost surely, 2^663143572425 is an apocalyptic number.

It is an amenable number.

663143572425 is a deficient number, since it is larger than the sum of its proper divisors (448403641143).

663143572425 is a wasteful number, since it uses less digits than its factorization.

663143572425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414390 (or 414385 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 663143572425 in words is "six hundred sixty-three billion, one hundred forty-three million, five hundred seventy-two thousand, four hundred twenty-five".