18016280141638 has 8 divisors (see below), whose sum is σ = 27024451657632. Its totient is φ = 9008129589096.

The previous prime is 18016280141621. The next prime is 18016280141767. The reversal of 18016280141638 is 83614108261081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18016280141591 and 18016280141600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879545 + ... + 6657652.

It is an arithmetic number, because the mean of its divisors is an integer number (3378056457204).

Almost surely, 2^{18016280141638} is an apocalyptic number.

18016280141638 is a deficient number, since it is larger than the sum of its proper divisors (9008171515994).

18016280141638 is an equidigital number, since it uses as much as digits as its factorization.

18016280141638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481726.

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 18016280141638 in words is "eighteen trillion, sixteen billion, two hundred eighty million, one hundred forty-one thousand, six hundred thirty-eight".