625331663201 has 16 divisors (see below), whose sum is σ = 726450528000. Its totient is φ = 527160934080.

The previous prime is 625331663197. The next prime is 625331663221. The reversal of 625331663201 is 102366133526.

It is a cyclic number.

It is not a de Polignac number, because 625331663201 - 2² = 625331663197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (625331663221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4754675 + ... + 4884423.

It is an arithmetic number, because the mean of its divisors is an integer number (45403158000).

Almost surely, 2^625331663201 is an apocalyptic number.

625331663201 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

625331663201 is a deficient number, since it is larger than the sum of its proper divisors (101118864799).

625331663201 is a wasteful number, since it uses less digits than its factorization.

625331663201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141104.

The product of its (nonzero) digits is 116640, while the sum is 38.

Adding to 625331663201 its reverse (102366133526), we get a palindrome (727697796727).

The spelling of 625331663201 in words is "six hundred twenty-five billion, three hundred thirty-one million, six hundred sixty-three thousand, two hundred one".