18010256607918 has 32 divisors (see below), whose sum is σ = 42129255225600. Its totient is φ = 5687449454808.

The previous prime is 18010256607907. The next prime is 18010256607953. The reversal of 18010256607918 is 81970665201081.

It is a happy number.

18010256607918 is a `hidden beast` number, since 1 + 8 + 0 + 1 + 0 + 2 + 566 + 0 + 79 + 1 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

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, 8776927146 + ... + 8776929197.

It is an arithmetic number, because the mean of its divisors is an integer number (1316539225800).

Almost surely, 2^{18010256607918} is an apocalyptic number.

18010256607918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18010256607918 is an abundant number, since it is smaller than the sum of its proper divisors (24118998617682).

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

18010256607918 is a wasteful number, since it uses less digits than its factorization.

18010256607918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17553856373 (or 17553856367 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 18010256607918 in words is "eighteen trillion, ten billion, two hundred fifty-six million, six hundred seven thousand, nine hundred eighteen".