1253666333357 has 4 divisors (see below), whose sum is σ = 1256063401440. Its totient is φ = 1251269265276.

The previous prime is 1253666333329. The next prime is 1253666333369. The reversal of 1253666333357 is 7533336663521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1253666333357 - 2¹⁸ = 1253666071213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253666333299 and 1253666333308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253666333057) by changing a digit.

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, 1198533257 + ... + 1198534302.

It is an arithmetic number, because the mean of its divisors is an integer number (314015850360).

Almost surely, 2^{1253666333357} is an apocalyptic number.

It is an amenable number.

1253666333357 is a deficient number, since it is larger than the sum of its proper divisors (2397068083).

1253666333357 is an equidigital number, since it uses as much as digits as its factorization.

1253666333357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397068082.

The product of its digits is 18370800, while the sum is 53.

The spelling of 1253666333357 in words is "one trillion, two hundred fifty-three billion, six hundred sixty-six million, three hundred thirty-three thousand, three hundred fifty-seven".