18530163162520 has 32 divisors (see below), whose sum is σ = 41694552748800. Its totient is φ = 7411765596928.

The previous prime is 18530163162509. The next prime is 18530163162523. The reversal of 18530163162520 is 2526136103581.

It is a super-2 number, since 2×18530163162520² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18530163162523) 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, 8361565 + ... + 10342924.

It is an arithmetic number, because the mean of its divisors is an integer number (1302954773400).

Almost surely, 2^{18530163162520} is an apocalyptic number.

18530163162520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18530163162520 is an abundant number, since it is smaller than the sum of its proper divisors (23164389586280).

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

18530163162520 is a wasteful number, since it uses less digits than its factorization.

18530163162520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18729267 (or 18729263 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 18530163162520 in words is "eighteen trillion, five hundred thirty billion, one hundred sixty-three million, one hundred sixty-two thousand, five hundred twenty".