225362135166 has 32 divisors (see below), whose sum is σ = 529035440640. Its totient is φ = 62648932896.

The previous prime is 225362135149. The next prime is 225362135191. The reversal of 225362135166 is 661531263522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72508786 + ... + 72511893.

It is an arithmetic number, because the mean of its divisors is an integer number (16532357520).

Almost surely, 2^225362135166 is an apocalyptic number.

225362135166 is an abundant number, since it is smaller than the sum of its proper divisors (303673305474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225362135166 is a wasteful number, since it uses less digits than its factorization.

225362135166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145020728.

The product of its digits is 388800, while the sum is 42.

Adding to 225362135166 its reverse (661531263522), we get a palindrome (886893398688).

The spelling of 225362135166 in words is "two hundred twenty-five billion, three hundred sixty-two million, one hundred thirty-five thousand, one hundred sixty-six".