66031337044 has 24 divisors (see below), whose sum is σ = 116169596928. Its totient is φ = 32840105760.

The previous prime is 66031337039. The next prime is 66031337063. The reversal of 66031337044 is 44073313066.

It is a junction number, because it is equal to n+sod(n) for n = 66031336994 and 66031337012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4518189 + ... + 4532779.

It is an arithmetic number, because the mean of its divisors is an integer number (4840399872).

Almost surely, 2^66031337044 is an apocalyptic number.

It is an amenable number.

66031337044 is a deficient number, since it is larger than the sum of its proper divisors (50138259884).

66031337044 is a wasteful number, since it uses less digits than its factorization.

66031337044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20535 (or 20533 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 66031337044 in words is "sixty-six billion, thirty-one million, three hundred thirty-seven thousand, forty-four".