36556144613 has 2 divisors, whose sum is σ = 36556144614. Its totient is φ = 36556144612.

The previous prime is 36556144607. The next prime is 36556144631. The reversal of 36556144613 is 31644165563.

Together with next prime (36556144631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22010096164 + 14546048449 = 148358^2 + 120607^2 .

It is a cyclic number.

It is not a de Polignac number, because 36556144613 - 2³⁰ = 35482402789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36556144673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18278072306 + 18278072307.

It is an arithmetic number, because the mean of its divisors is an integer number (18278072307).

Almost surely, 2^36556144613 is an apocalyptic number.

It is an amenable number.

36556144613 is a deficient number, since it is larger than the sum of its proper divisors (1).

36556144613 is an equidigital number, since it uses as much as digits as its factorization.

36556144613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 44.

The spelling of 36556144613 in words is "thirty-six billion, five hundred fifty-six million, one hundred forty-four thousand, six hundred thirteen".