18020163348315 has 32 divisors (see below), whose sum is σ = 32203572940800. Its totient is φ = 9560435689440.

The previous prime is 18020163348269. The next prime is 18020163348331. The reversal of 18020163348315 is 51384336102081.

It is a happy number.

18020163348315 is a `hidden beast` number, since 1 + 8 + 0 + 2 + 0 + 1 + 633 + 4 + 8 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 18020163348315 - 2⁹ = 18020163347803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349405345 + ... + 349456914.

It is an arithmetic number, because the mean of its divisors is an integer number (1006361654400).

Almost surely, 2^{18020163348315} is an apocalyptic number.

18020163348315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18020163348315 is a deficient number, since it is larger than the sum of its proper divisors (14183409592485).

18020163348315 is a wasteful number, since it uses less digits than its factorization.

18020163348315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698862464 (or 698862458 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 18020163348315 in words is "eighteen trillion, twenty billion, one hundred sixty-three million, three hundred forty-eight thousand, three hundred fifteen".