225705047665471 has 16 divisors (see below), whose sum is σ = 256933513317888. Its totient is φ = 196261861672800.

The previous prime is 225705047665429. The next prime is 225705047665481. The reversal of 225705047665471 is 174566740507522.

It is not a de Polignac number, because 225705047665471 - 2⁹ = 225705047664959 is a prime.

It is a super-3 number, since 3×225705047665471³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225705047665481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6979885 + ... + 22363561.

It is an arithmetic number, because the mean of its divisors is an integer number (16058344582368).

Almost surely, 2^{225705047665471} is an apocalyptic number.

225705047665471 is a deficient number, since it is larger than the sum of its proper divisors (31228465652417).

225705047665471 is a wasteful number, since it uses less digits than its factorization.

225705047665471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15441702.

The product of its (nonzero) digits is 98784000, while the sum is 61.

The spelling of 225705047665471 in words is "two hundred twenty-five trillion, seven hundred five billion, forty-seven million, six hundred sixty-five thousand, four hundred seventy-one".