1253161822572 has 60 divisors (see below), whose sum is σ = 3573831874536. Its totient is φ = 379746005760.

The previous prime is 1253161822487. The next prime is 1253161822597. The reversal of 1253161822572 is 2752281613521.

1253161822572 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 1 + 618 + 2 + 25 + 7 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175804773 + ... + 175811900.

Almost surely, 2^{1253161822572} is an apocalyptic number.

1253161822572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253161822572 is an abundant number, since it is smaller than the sum of its proper divisors (2320670051964).

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

1253161822572 is a wasteful number, since it uses less digits than its factorization.

1253161822572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351616700 (or 351616689 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The spelling of 1253161822572 in words is "one trillion, two hundred fifty-three billion, one hundred sixty-one million, eight hundred twenty-two thousand, five hundred seventy-two".