253264416634 has 8 divisors (see below), whose sum is σ = 392996508660. Its totient is φ = 122265580416.

The previous prime is 253264416617. The next prime is 253264416703. The reversal of 253264416634 is 436614462352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 225259398225 + 28005018409 = 474615^2 + 167347^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2183313879 + ... + 2183313994.

Almost surely, 2^253264416634 is an apocalyptic number.

253264416634 is a deficient number, since it is larger than the sum of its proper divisors (139732092026).

253264416634 is a wasteful number, since it uses less digits than its factorization.

253264416634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4366627904.

The product of its digits is 2488320, while the sum is 46.

Adding to 253264416634 its reverse (436614462352), we get a palindrome (689878878986).

The spelling of 253264416634 in words is "two hundred fifty-three billion, two hundred sixty-four million, four hundred sixteen thousand, six hundred thirty-four".