18441026146181 has 16 divisors (see below), whose sum is σ = 19993766284800. Its totient is φ = 16940844146688.

The previous prime is 18441026146171. The next prime is 18441026146187. The reversal of 18441026146181 is 18164162014481.

It is a cyclic number.

It is not a de Polignac number, because 18441026146181 - 2¹⁸ = 18441025884037 is a prime.

It is a super-2 number, since 2×18441026146181² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18441026146187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7713596 + ... + 9817413.

It is an arithmetic number, because the mean of its divisors is an integer number (1249610392800).

Almost surely, 2^{18441026146181} is an apocalyptic number.

It is an amenable number.

18441026146181 is a deficient number, since it is larger than the sum of its proper divisors (1552740138619).

18441026146181 is a wasteful number, since it uses less digits than its factorization.

18441026146181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17532508.

The product of its (nonzero) digits is 294912, while the sum is 47.

The spelling of 18441026146181 in words is "eighteen trillion, four hundred forty-one billion, twenty-six million, one hundred forty-six thousand, one hundred eighty-one".