631011016225 has 12 divisors (see below), whose sum is σ = 816473385216. Its totient is φ = 482860603280.

The previous prime is 631011016217. The next prime is 631011016331. The reversal of 631011016225 is 522610110136.

It is not a de Polignac number, because 631011016225 - 2³ = 631011016217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631011016193 and 631011016202.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 548704657 + ... + 548705806.

It is an arithmetic number, because the mean of its divisors is an integer number (68039448768).

Almost surely, 2^631011016225 is an apocalyptic number.

It is an amenable number.

631011016225 is a deficient number, since it is larger than the sum of its proper divisors (185462368991).

631011016225 is a wasteful number, since it uses less digits than its factorization.

631011016225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097410496 (or 1097410491 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 631011016225 in words is "six hundred thirty-one billion, eleven million, sixteen thousand, two hundred twenty-five".