36555464641 has 4 divisors (see below), whose sum is σ = 36622294192. Its totient is φ = 36488635092.

The previous prime is 36555464639. The next prime is 36555464669. The reversal of 36555464641 is 14646455563.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14646455563 = 113 ⋅129614651.

It is a cyclic number.

It is not a de Polignac number, because 36555464641 - 2¹ = 36555464639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36555464611) 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, 33413955 + ... + 33415048.

It is an arithmetic number, because the mean of its divisors is an integer number (9155573548).

Almost surely, 2^36555464641 is an apocalyptic number.

It is an amenable number.

36555464641 is a deficient number, since it is larger than the sum of its proper divisors (66829551).

36555464641 is an equidigital number, since it uses as much as digits as its factorization.

36555464641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66829550.

The product of its digits is 5184000, while the sum is 49.

The spelling of 36555464641 in words is "thirty-six billion, five hundred fifty-five million, four hundred sixty-four thousand, six hundred forty-one".