6561207000219 has 16 divisors (see below), whose sum is σ = 8831146435200. Its totient is φ = 4332750608256.

The previous prime is 6561207000209. The next prime is 6561207000263. The reversal of 6561207000219 is 9120007021656.

It is not a de Polignac number, because 6561207000219 - 2⁴ = 6561207000203 is a prime.

It is a super-2 number, since 2×6561207000219² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6561207000209) 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, 5428489 + ... + 6526170.

It is an arithmetic number, because the mean of its divisors is an integer number (551946652200).

Almost surely, 2^{6561207000219} is an apocalyptic number.

6561207000219 is a deficient number, since it is larger than the sum of its proper divisors (2269939434981).

6561207000219 is a wasteful number, since it uses less digits than its factorization.

6561207000219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11956394.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 6561207000219 in words is "six trillion, five hundred sixty-one billion, two hundred seven million, two hundred nineteen", and thus it is an aban number.