36555518791 has 8 divisors (see below), whose sum is σ = 39904444944. Its totient is φ = 33210875520.

The previous prime is 36555518789. The next prime is 36555518803. The reversal of 36555518791 is 19781555563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36555518791 - 2¹ = 36555518789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36555510791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052856 + ... + 1087021.

It is an arithmetic number, because the mean of its divisors is an integer number (4988055618).

Almost surely, 2^36555518791 is an apocalyptic number.

36555518791 is a deficient number, since it is larger than the sum of its proper divisors (3348926153).

36555518791 is a wasteful number, since it uses less digits than its factorization.

36555518791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141441.

The product of its digits is 5670000, while the sum is 55.

The spelling of 36555518791 in words is "thirty-six billion, five hundred fifty-five million, five hundred eighteen thousand, seven hundred ninety-one".