225346665650 has 24 divisors (see below), whose sum is σ = 419172546240. Its totient is φ = 90132698960.

The previous prime is 225346665647. The next prime is 225346665653. The reversal of 225346665650 is 56566643522.

It is an interprime number because it is at equal distance from previous prime (225346665647) and next prime (225346665653).

It is a super-2 number, since 2×225346665650² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (225346665653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 656747 + ... + 939153.

It is an arithmetic number, because the mean of its divisors is an integer number (17465522760).

Almost surely, 2^225346665650 is an apocalyptic number.

225346665650 is a deficient number, since it is larger than the sum of its proper divisors (193825880590).

225346665650 is a wasteful number, since it uses less digits than its factorization.

225346665650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298378 (or 298373 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 50.

The spelling of 225346665650 in words is "two hundred twenty-five billion, three hundred forty-six million, six hundred sixty-five thousand, six hundred fifty".