225651465671 has 4 divisors (see below), whose sum is σ = 225658632072. Its totient is φ = 225644299272.

The previous prime is 225651465661. The next prime is 225651465673. The reversal of 225651465671 is 176564156522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225651465671 - 2⁶ = 225651465607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225651465673) 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, 3535760 + ... + 3599013.

It is an arithmetic number, because the mean of its divisors is an integer number (56414658018).

Almost surely, 2^225651465671 is an apocalyptic number.

225651465671 is a deficient number, since it is larger than the sum of its proper divisors (7166401).

225651465671 is an equidigital number, since it uses as much as digits as its factorization.

225651465671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7166400.

The product of its digits is 3024000, while the sum is 50.

The spelling of 225651465671 in words is "two hundred twenty-five billion, six hundred fifty-one million, four hundred sixty-five thousand, six hundred seventy-one".