225064137778 has 8 divisors (see below), whose sum is σ = 337602460572. Its totient is φ = 112529984256.

The previous prime is 225064137763. The next prime is 225064137791. The reversal of 225064137778 is 877731460522.

225064137778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 215404589689 + 9659548089 = 464117^2 + 98283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×225064137778² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903675 + ... + 1125502.

Almost surely, 2^225064137778 is an apocalyptic number.

225064137778 is a deficient number, since it is larger than the sum of its proper divisors (112538322794).

225064137778 is a wasteful number, since it uses less digits than its factorization.

225064137778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084636.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 225064137778 in words is "two hundred twenty-five billion, sixty-four million, one hundred thirty-seven thousand, seven hundred seventy-eight".