36210566561 has 16 divisors (see below), whose sum is σ = 40125229200. Its totient is φ = 32469715200.

The previous prime is 36210566549. The next prime is 36210566569. The reversal of 36210566561 is 16566501263.

It can be written as a sum of positive squares in 8 ways, for example, as 2632203025 + 33578363536 = 51305^2 + 183244^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36210566561 is a prime.

It is a super-2 number, since 2×36210566561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36210566569) 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, 190586 + ... + 329763.

It is an arithmetic number, because the mean of its divisors is an integer number (2507826825).

Almost surely, 2^36210566561 is an apocalyptic number.

It is an amenable number.

36210566561 is a deficient number, since it is larger than the sum of its proper divisors (3914662639).

36210566561 is a wasteful number, since it uses less digits than its factorization.

36210566561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520516.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 36210566561 in words is "thirty-six billion, two hundred ten million, five hundred sixty-six thousand, five hundred sixty-one".