18170145347044 has 48 divisors (see below), whose sum is σ = 32551086355200. Its totient is φ = 8872448173056.

The previous prime is 18170145347027. The next prime is 18170145347087. The reversal of 18170145347044 is 44074354107181.

It is a happy 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, 52948887 + ... + 53290945.

It is an arithmetic number, because the mean of its divisors is an integer number (678147632400).

Almost surely, 2^{18170145347044} is an apocalyptic number.

It is an amenable number.

18170145347044 is a deficient number, since it is larger than the sum of its proper divisors (14380941008156).

18170145347044 is a wasteful number, since it uses less digits than its factorization.

18170145347044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343972 (or 343970 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 18170145347044 in words is "eighteen trillion, one hundred seventy billion, one hundred forty-five million, three hundred forty-seven thousand, forty-four".