18122176480 has 24 divisors (see below), whose sum is σ = 42813642312. Its totient is φ = 7248870528.

The previous prime is 18122176469. The next prime is 18122176487. The reversal of 18122176480 is 8467122181.

It is a super-3 number, since 3×18122176480³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18122176487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56631642 + ... + 56631961.

It is an arithmetic number, because the mean of its divisors is an integer number (1783901763).

Almost surely, 2^18122176480 is an apocalyptic number.

18122176480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18122176480 is an abundant number, since it is smaller than the sum of its proper divisors (24691465832).

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

18122176480 is a wasteful number, since it uses less digits than its factorization.

18122176480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113263618 (or 113263610 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 18122176480 in words is "eighteen billion, one hundred twenty-two million, one hundred seventy-six thousand, four hundred eighty".