225816686476155 has 24 divisors (see below), whose sum is σ = 391429722069360. Its totient is φ = 120431217758400.

The previous prime is 225816686476099. The next prime is 225816686476247. The reversal of 225816686476155 is 551674686618522.

225816686476155 is a `hidden beast` number, since 2 + 2 + 5 + 8 + 1 + 66 + 86 + 476 + 15 + 5 = 666.

It is not a de Polignac number, because 225816686476155 - 2¹¹ = 225816686474107 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, 89330485 + ... + 91823574.

It is an arithmetic number, because the mean of its divisors is an integer number (16309571752890).

Almost surely, 2^{225816686476155} is an apocalyptic number.

225816686476155 is a deficient number, since it is larger than the sum of its proper divisors (165613035593205).

225816686476155 is a wasteful number, since it uses less digits than its factorization.

225816686476155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181181771 (or 181181768 counting only the distinct ones).

The product of its digits is 1161216000, while the sum is 72.

The spelling of 225816686476155 in words is "two hundred twenty-five trillion, eight hundred sixteen billion, six hundred eighty-six million, four hundred seventy-six thousand, one hundred fifty-five".