225608666701 has 4 divisors (see below), whose sum is σ = 246118545504. Its totient is φ = 205098787900.

The previous prime is 225608666677. The next prime is 225608666719. The reversal of 225608666701 is 107666806522.

It is a happy number.

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 225608666701 - 2¹¹ = 225608664653 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 (225608666401) 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, 10254939385 + ... + 10254939406.

It is an arithmetic number, because the mean of its divisors is an integer number (61529636376).

Almost surely, 2^225608666701 is an apocalyptic number.

It is an amenable number.

225608666701 is a deficient number, since it is larger than the sum of its proper divisors (20509878803).

225608666701 is a wasteful number, since it uses less digits than its factorization.

225608666701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20509878802.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 225608666701 in words is "two hundred twenty-five billion, six hundred eight million, six hundred sixty-six thousand, seven hundred one".