18350337020 has 24 divisors (see below), whose sum is σ = 40211174304. Its totient is φ = 7020998336.

The previous prime is 18350336959. The next prime is 18350337029. The reversal of 18350337020 is 2073305381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18350337029) 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, 19945559 + ... + 19946478.

It is an arithmetic number, because the mean of its divisors is an integer number (1675465596).

Almost surely, 2^18350337020 is an apocalyptic number.

18350337020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18350337020 is an abundant number, since it is smaller than the sum of its proper divisors (21860837284).

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

18350337020 is a wasteful number, since it uses less digits than its factorization.

18350337020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39892069 (or 39892067 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 18350337020 in words is "eighteen billion, three hundred fifty million, three hundred thirty-seven thousand, twenty".