1253645067303 has 16 divisors (see below), whose sum is σ = 1857284920800. Its totient is φ = 835748542080.

The previous prime is 1253645067293. The next prime is 1253645067361. The reversal of 1253645067303 is 3037605463521.

It is a happy number.

1253645067303 is a `hidden beast` number, since 1 + 2 + 53 + 64 + 506 + 7 + 30 + 3 = 666.

It is not a de Polignac number, because 1253645067303 - 2⁴ = 1253645067287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253645067503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260463 + ... + 2023871.

It is an arithmetic number, because the mean of its divisors is an integer number (116080307550).

Almost surely, 2^{1253645067303} is an apocalyptic number.

1253645067303 is a deficient number, since it is larger than the sum of its proper divisors (603639853497).

1253645067303 is an equidigital number, since it uses as much as digits as its factorization.

1253645067303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824239 (or 824233 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The spelling of 1253645067303 in words is "one trillion, two hundred fifty-three billion, six hundred forty-five million, sixty-seven thousand, three hundred three".