246631220225 has 48 divisors (see below), whose sum is σ = 332721829440. Its totient is φ = 180264787200.

The previous prime is 246631220191. The next prime is 246631220293. The reversal of 246631220225 is 522022136642.

It is a de Polignac number, because none of the positive numbers 2^k-246631220225 is a prime.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 50734295 + ... + 50739155.

It is an arithmetic number, because the mean of its divisors is an integer number (6931704780).

Almost surely, 2^246631220225 is an apocalyptic number.

246631220225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

246631220225 is a deficient number, since it is larger than the sum of its proper divisors (86090609215).

246631220225 is a wasteful number, since it uses less digits than its factorization.

246631220225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450 (or 6445 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 246631220225 its reverse (522022136642), we get a palindrome (768653356867).

The spelling of 246631220225 in words is "two hundred forty-six billion, six hundred thirty-one million, two hundred twenty thousand, two hundred twenty-five".