36105566321 has 4 divisors (see below), whose sum is σ = 39387890544. Its totient is φ = 32823242100.

The previous prime is 36105566317. The next prime is 36105566347. The reversal of 36105566321 is 12366550163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36105566321 - 2² = 36105566317 is a prime.

It is a super-2 number, since 2×36105566321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36105566381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641162095 + ... + 1641162116.

It is an arithmetic number, because the mean of its divisors is an integer number (9846972636).

Almost surely, 2^36105566321 is an apocalyptic number.

It is an amenable number.

36105566321 is a deficient number, since it is larger than the sum of its proper divisors (3282324223).

36105566321 is a wasteful number, since it uses less digits than its factorization.

36105566321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282324222.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 36105566321 in words is "thirty-six billion, one hundred five million, five hundred sixty-six thousand, three hundred twenty-one".