254261116633 has 4 divisors (see below), whose sum is σ = 255128902308. Its totient is φ = 253393330960.

The previous prime is 254261116597. The next prime is 254261116649. The reversal of 254261116633 is 336611162452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 249867017689 + 4394098944 = 499867^2 + 66288^2 .

It is a cyclic number.

It is not a de Polignac number, because 254261116633 - 2²⁵ = 254227562201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254261116663) 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, 433892398 + ... + 433892983.

It is an arithmetic number, because the mean of its divisors is an integer number (63782225577).

Almost surely, 2^254261116633 is an apocalyptic number.

It is an amenable number.

254261116633 is a deficient number, since it is larger than the sum of its proper divisors (867785675).

254261116633 is an equidigital number, since it uses as much as digits as its factorization.

254261116633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867785674.

The product of its digits is 155520, while the sum is 40.

The spelling of 254261116633 in words is "two hundred fifty-four billion, two hundred sixty-one million, one hundred sixteen thousand, six hundred thirty-three".