1018322416225 has 24 divisors (see below), whose sum is σ = 1270221557760. Its totient is φ = 809824080000.

The previous prime is 1018322416219. The next prime is 1018322416327. The reversal of 1018322416225 is 5226142238101.

It is a de Polignac number, because none of the positive numbers 2^k-1018322416225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6797125 + ... + 6945325.

It is an arithmetic number, because the mean of its divisors is an integer number (52925898240).

Almost surely, 2^{1018322416225} is an apocalyptic number.

It is an amenable number.

1018322416225 is a deficient number, since it is larger than the sum of its proper divisors (251899141535).

1018322416225 is a wasteful number, since it uses less digits than its factorization.

1018322416225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149841 (or 149836 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 1018322416225 in words is "one trillion, eighteen billion, three hundred twenty-two million, four hundred sixteen thousand, two hundred twenty-five".