6561670571106 has 64 divisors (see below), whose sum is σ = 15022333820160. Its totient is φ = 1871736145920.

The previous prime is 6561670571101. The next prime is 6561670571123. The reversal of 6561670571106 is 6011750761656.

It is not an unprimeable number, because it can be changed into a prime (6561670571101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89927070 + ... + 90000006.

It is an arithmetic number, because the mean of its divisors is an integer number (234723965940).

Almost surely, 2^{6561670571106} is an apocalyptic number.

6561670571106 is an abundant number, since it is smaller than the sum of its proper divisors (8460663249054).

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

6561670571106 is a wasteful number, since it uses less digits than its factorization.

6561670571106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76379.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 6561670571106 in words is "six trillion, five hundred sixty-one billion, six hundred seventy million, five hundred seventy-one thousand, one hundred six".