36561326553 has 12 divisors (see below), whose sum is σ = 52818927408. Its totient is φ = 24370468920.

The previous prime is 36561326521. The next prime is 36561326657. The reversal of 36561326553 is 35562316563.

36561326553 is a `hidden beast` number, since 3 + 6 + 5 + 61 + 32 + 6 + 553 = 666.

It is not a de Polignac number, because 36561326553 - 2⁵ = 36561326521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36561326499 and 36561326508.

It is not an unprimeable number, because it can be changed into a prime (36561326453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249975 + ... + 368252.

It is an arithmetic number, because the mean of its divisors is an integer number (4401577284).

Almost surely, 2^36561326553 is an apocalyptic number.

It is an amenable number.

36561326553 is a deficient number, since it is larger than the sum of its proper divisors (16257600855).

36561326553 is a wasteful number, since it uses less digits than its factorization.

36561326553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624804 (or 624801 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 45.

The spelling of 36561326553 in words is "thirty-six billion, five hundred sixty-one million, three hundred twenty-six thousand, five hundred fifty-three".