18571193348466 has 32 divisors (see below), whose sum is σ = 40522897712448. Its totient is φ = 5627088458240.

The previous prime is 18571193348453. The next prime is 18571193348471. The reversal of 18571193348466 is 66484339117581.

It is a super-2 number, since 2×18571193348466² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 18571193348397 and 18571193348406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12961431 + ... + 14322746.

It is an arithmetic number, because the mean of its divisors is an integer number (1266340553514).

Almost surely, 2^{18571193348466} is an apocalyptic number.

18571193348466 is an abundant number, since it is smaller than the sum of its proper divisors (21951704363982).

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

18571193348466 is a wasteful number, since it uses less digits than its factorization.

18571193348466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27294506.

The product of its digits is 104509440, while the sum is 66.

The spelling of 18571193348466 in words is "eighteen trillion, five hundred seventy-one billion, one hundred ninety-three million, three hundred forty-eight thousand, four hundred sixty-six".