18061143805334 has 32 divisors (see below), whose sum is σ = 31124084397120. Its totient is φ = 7699971823488.

The previous prime is 18061143805321. The next prime is 18061143805343. The reversal of 18061143805334 is 43350834116081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16903952 + ... + 17940620.

It is an arithmetic number, because the mean of its divisors is an integer number (972627637410).

Almost surely, 2^{18061143805334} is an apocalyptic number.

18061143805334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18061143805334 is a deficient number, since it is larger than the sum of its proper divisors (13062940591786).

18061143805334 is a wasteful number, since it uses less digits than its factorization.

18061143805334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043192.

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 18061143805334 in words is "eighteen trillion, sixty-one billion, one hundred forty-three million, eight hundred five thousand, three hundred thirty-four".