1040563661225 has 48 divisors (see below), whose sum is σ = 1422795143616. Its totient is φ = 748611072000.

The previous prime is 1040563661219. The next prime is 1040563661239. The reversal of 1040563661225 is 5221663650401.

It is a happy number.

It is not a de Polignac number, because 1040563661225 - 2¹⁸ = 1040563399081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63398270 + ... + 63414680.

It is an arithmetic number, because the mean of its divisors is an integer number (29641565492).

Almost surely, 2^{1040563661225} is an apocalyptic number.

It is an amenable number.

1040563661225 is a deficient number, since it is larger than the sum of its proper divisors (382231482391).

1040563661225 is a wasteful number, since it uses less digits than its factorization.

1040563661225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18906 (or 18901 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1040563661225 in words is "one trillion, forty billion, five hundred sixty-three million, six hundred sixty-one thousand, two hundred twenty-five".