253265143466 has 8 divisors (see below), whose sum is σ = 379964509860. Its totient is φ = 126610306848.

The previous prime is 253265143457. The next prime is 253265143501. The reversal of 253265143466 is 664341562352.

It can be written as a sum of positive squares in 2 ways, for example, as 228743149441 + 24521994025 = 478271^2 + 156595^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 253265143466.

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, 11118221 + ... + 11140976.

Almost surely, 2^253265143466 is an apocalyptic number.

253265143466 is a deficient number, since it is larger than the sum of its proper divisors (126699366394).

253265143466 is a wasteful number, since it uses less digits than its factorization.

253265143466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22264888.

The product of its digits is 3110400, while the sum is 47.

The spelling of 253265143466 in words is "two hundred fifty-three billion, two hundred sixty-five million, one hundred forty-three thousand, four hundred sixty-six".