225071073661 has 4 divisors (see below), whose sum is σ = 257224084192. Its totient is φ = 192918063132.

The previous prime is 225071073641. The next prime is 225071073743. The reversal of 225071073661 is 166370170522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225071073661 - 2⁷ = 225071073533 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 (225071073641) 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, 16076505255 + ... + 16076505268.

It is an arithmetic number, because the mean of its divisors is an integer number (64306021048).

Almost surely, 2^225071073661 is an apocalyptic number.

It is an amenable number.

225071073661 is a deficient number, since it is larger than the sum of its proper divisors (32153010531).

225071073661 is an equidigital number, since it uses as much as digits as its factorization.

225071073661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32153010530.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 225071073661 in words is "two hundred twenty-five billion, seventy-one million, seventy-three thousand, six hundred sixty-one".