6533749220572 has 36 divisors (see below), whose sum is σ = 13301190457464. Its totient is φ = 2800105852320.

The previous prime is 6533749220549. The next prime is 6533749220573. The reversal of 6533749220572 is 2750229473356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6533749220573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7546447 + ... + 8367577.

Almost surely, 2^{6533749220572} is an apocalyptic number.

It is an amenable number.

6533749220572 is an abundant number, since it is smaller than the sum of its proper divisors (6767441236892).

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

6533749220572 is a wasteful number, since it uses less digits than its factorization.

6533749220572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861746 (or 861737 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 55.

The spelling of 6533749220572 in words is "six trillion, five hundred thirty-three billion, seven hundred forty-nine million, two hundred twenty thousand, five hundred seventy-two".