36554230621 has 4 divisors (see below), whose sum is σ = 36595442592. Its totient is φ = 36513018652.

The previous prime is 36554230553. The next prime is 36554230639. The reversal of 36554230621 is 12603245563.

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: 12603245563 = 61 ⋅206610583.

It is a cyclic number.

It is not a de Polignac number, because 36554230621 - 2²¹ = 36552133469 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 (36554230681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20604655 + ... + 20606428.

It is an arithmetic number, because the mean of its divisors is an integer number (9148860648).

Almost surely, 2^36554230621 is an apocalyptic number.

It is an amenable number.

36554230621 is a deficient number, since it is larger than the sum of its proper divisors (41211971).

36554230621 is an equidigital number, since it uses as much as digits as its factorization.

36554230621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41211970.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 36554230621 in words is "thirty-six billion, five hundred fifty-four million, two hundred thirty thousand, six hundred twenty-one".