1253021663160 has 96 divisors (see below), whose sum is σ = 4080107481840. Its totient is φ = 333500170752.

The previous prime is 1253021663149. The next prime is 1253021663161. The reversal of 1253021663160 is 613661203521.

1253021663160 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 0 + 2 + 16 + 631 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253021663161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3139269 + ... + 3515828.

Almost surely, 2^{1253021663160} is an apocalyptic number.

1253021663160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253021663160 is an abundant number, since it is smaller than the sum of its proper divisors (2827085818680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253021663160 is a wasteful number, since it uses less digits than its factorization.

1253021663160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655637 (or 6655630 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 1253021663160 its reverse (613661203521), we get a palindrome (1866682866681).

The spelling of 1253021663160 in words is "one trillion, two hundred fifty-three billion, twenty-one million, six hundred sixty-three thousand, one hundred sixty".