18288556029161 has 8 divisors (see below), whose sum is σ = 19951262912448. Its totient is φ = 16625867626000.

The previous prime is 18288556029119. The next prime is 18288556029169. The reversal of 18288556029161 is 16192065588281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18288556029161 - 2³⁰ = 18287482287337 is a prime.

It is a super-2 number, since 2×18288556029161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18288556029094 and 18288556029103.

It is not an unprimeable number, because it can be changed into a prime (18288556029169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508845 + ... + 6547626.

It is an arithmetic number, because the mean of its divisors is an integer number (2493907864056).

Almost surely, 2^{18288556029161} is an apocalyptic number.

18288556029161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18288556029161 is a deficient number, since it is larger than the sum of its proper divisors (1662706883287).

18288556029161 is a wasteful number, since it uses less digits than its factorization.

18288556029161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9240063.

The product of its (nonzero) digits is 16588800, while the sum is 62.

The spelling of 18288556029161 in words is "eighteen trillion, two hundred eighty-eight billion, five hundred fifty-six million, twenty-nine thousand, one hundred sixty-one".