225665664762 has 16 divisors (see below), whose sum is σ = 451796152032. Its totient is φ = 75144417840.

The previous prime is 225665664727. The next prime is 225665664767. The reversal of 225665664762 is 267466566522.

It is not an unprimeable number, because it can be changed into a prime (225665664767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19361293 + ... + 19372944.

It is an arithmetic number, because the mean of its divisors is an integer number (28237259502).

Almost surely, 2^225665664762 is an apocalyptic number.

225665664762 is an abundant number, since it is smaller than the sum of its proper divisors (226130487270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225665664762 is a wasteful number, since it uses less digits than its factorization.

225665664762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38735213.

The product of its digits is 43545600, while the sum is 57.

The spelling of 225665664762 in words is "two hundred twenty-five billion, six hundred sixty-five million, six hundred sixty-four thousand, seven hundred sixty-two".