18716670220 has 24 divisors (see below), whose sum is σ = 39555364464. Its totient is φ = 7438981056.

The previous prime is 18716670169. The next prime is 18716670221. The reversal of 18716670220 is 2207661781.

It is not an unprimeable number, because it can be changed into a prime (18716670221) 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 7 ways as a sum of consecutive naturals, for example, 2977222 + ... + 2983501.

It is an arithmetic number, because the mean of its divisors is an integer number (1648140186).

Almost surely, 2^18716670220 is an apocalyptic number.

18716670220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18716670220 is an abundant number, since it is smaller than the sum of its proper divisors (20838694244).

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

18716670220 is a wasteful number, since it uses less digits than its factorization.

18716670220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960889 (or 5960887 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18716670220 in words is "eighteen billion, seven hundred sixteen million, six hundred seventy thousand, two hundred twenty".