225405166544 has 20 divisors (see below), whose sum is σ = 436731154560. Its totient is φ = 112700352480.

The previous prime is 225405166541. The next prime is 225405166621. The reversal of 225405166544 is 445661504522.

It is a junction number, because it is equal to n+sod(n) for n = 225405166495 and 225405166504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225405166541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954047 + ... + 1166625.

It is an arithmetic number, because the mean of its divisors is an integer number (21836557728).

Almost surely, 2^225405166544 is an apocalyptic number.

It is an amenable number.

225405166544 is a deficient number, since it is larger than the sum of its proper divisors (211325988016).

225405166544 is a wasteful number, since it uses less digits than its factorization.

225405166544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278858 (or 278852 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 225405166544 in words is "two hundred twenty-five billion, four hundred five million, one hundred sixty-six thousand, five hundred forty-four".