6565555161011 has 16 divisors (see below), whose sum is σ = 8187722707200. Its totient is φ = 5114707325280.

The previous prime is 6565555160999. The next prime is 6565555161013. The reversal of 6565555161011 is 1101615555656.

It is not a de Polignac number, because 6565555161011 - 2⁶ = 6565555160947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6565555161013) 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, 10611236 + ... + 11212913.

It is an arithmetic number, because the mean of its divisors is an integer number (511732669200).

Almost surely, 2^{6565555161011} is an apocalyptic number.

6565555161011 is a deficient number, since it is larger than the sum of its proper divisors (1622167546189).

6565555161011 is a wasteful number, since it uses less digits than its factorization.

6565555161011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21828074.

The product of its (nonzero) digits is 675000, while the sum is 47.

The spelling of 6565555161011 in words is "six trillion, five hundred sixty-five billion, five hundred fifty-five million, one hundred sixty-one thousand, eleven".