18670020016870 has 32 divisors (see below), whose sum is σ = 33863899703040. Its totient is φ = 7410709444320.

The previous prime is 18670020016861. The next prime is 18670020016939. The reversal of 18670020016870 is 7861002007681.

It is a self number, because there is not a number n which added to its sum of digits gives 18670020016870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34787989 + ... + 35320591.

It is an arithmetic number, because the mean of its divisors is an integer number (1058246865720).

Almost surely, 2^{18670020016870} is an apocalyptic number.

18670020016870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18670020016870 is a deficient number, since it is larger than the sum of its proper divisors (15193879686170).

18670020016870 is a wasteful number, since it uses less digits than its factorization.

18670020016870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559500.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 18670020016870 in words is "eighteen trillion, six hundred seventy billion, twenty million, sixteen thousand, eight hundred seventy".