18550337036 has 48 divisors (see below), whose sum is σ = 40890780672. Its totient is φ = 7152883200.

The previous prime is 18550337033. The next prime is 18550337053. The reversal of 18550337036 is 63073305581.

It is a junction number, because it is equal to n+sod(n) for n = 18550336984 and 18550337002.

It is not an unprimeable number, because it can be changed into a prime (18550337033) 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 15 ways as a sum of consecutive naturals, for example, 280580 + ... + 340331.

It is an arithmetic number, because the mean of its divisors is an integer number (851891264).

Almost surely, 2^18550337036 is an apocalyptic number.

It is an amenable number.

18550337036 is an abundant number, since it is smaller than the sum of its proper divisors (22340443636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18550337036 is a wasteful number, since it uses less digits than its factorization.

18550337036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621030 (or 621028 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 18550337036 in words is "eighteen billion, five hundred fifty million, three hundred thirty-seven thousand, thirty-six".