144805566818 has 32 divisors (see below), whose sum is σ = 254132043840. Its totient is φ = 61179917760.

The previous prime is 144805566793. The next prime is 144805566833. The reversal of 144805566818 is 818665508441.

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, 3246005 + ... + 3290312.

It is an arithmetic number, because the mean of its divisors is an integer number (7941626370).

Almost surely, 2^144805566818 is an apocalyptic number.

144805566818 is a deficient number, since it is larger than the sum of its proper divisors (109326477022).

144805566818 is a wasteful number, since it uses less digits than its factorization.

144805566818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536402.

The product of its (nonzero) digits is 7372800, while the sum is 56.

The spelling of 144805566818 in words is "one hundred forty-four billion, eight hundred five million, five hundred sixty-six thousand, eight hundred eighteen".