25563455116616 has 32 divisors (see below), whose sum is σ = 48090052745280. Its totient is φ = 12739453416000.

The previous prime is 25563455116609. The next prime is 25563455116621. The reversal of 25563455116616 is 61661155436552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15843971 + ... + 17382701.

It is an arithmetic number, because the mean of its divisors is an integer number (1502814148290).

Almost surely, 2^{25563455116616} is an apocalyptic number.

It is an amenable number.

25563455116616 is a deficient number, since it is larger than the sum of its proper divisors (22526597628664).

25563455116616 is a wasteful number, since it uses less digits than its factorization.

25563455116616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545605 (or 1545601 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 56.

The spelling of 25563455116616 in words is "twenty-five trillion, five hundred sixty-three billion, four hundred fifty-five million, one hundred sixteen thousand, six hundred sixteen".