18552168688870 has 16 divisors (see below), whose sum is σ = 33424512187248. Its totient is φ = 7414065576160.

The previous prime is 18552168688793. The next prime is 18552168688871. The reversal of 18552168688870 is 7888686125581.

It is a junction number, because it is equal to n+sod(n) for n = 18552168688793 and 18552168688802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18552168688871) 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, 850225969 + ... + 850247788.

It is an arithmetic number, because the mean of its divisors is an integer number (2089032011703).

Almost surely, 2^{18552168688870} is an apocalyptic number.

18552168688870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18552168688870 is a deficient number, since it is larger than the sum of its proper divisors (14872343498378).

18552168688870 is a wasteful number, since it uses less digits than its factorization.

18552168688870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700474855.

The product of its (nonzero) digits is 412876800, while the sum is 73.

The spelling of 18552168688870 in words is "eighteen trillion, five hundred fifty-two billion, one hundred sixty-eight million, six hundred eighty-eight thousand, eight hundred seventy".