66410842144 has 24 divisors (see below), whose sum is σ = 130754085840. Its totient is φ = 33203455296.

The previous prime is 66410842123. The next prime is 66410842151. The reversal of 66410842144 is 44124801466.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66410842097 and 66410842106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595687 + ... + 698329.

It is an arithmetic number, because the mean of its divisors is an integer number (5448086910).

Almost surely, 2^66410842144 is an apocalyptic number.

It is an amenable number.

66410842144 is a deficient number, since it is larger than the sum of its proper divisors (64343243696).

66410842144 is a wasteful number, since it uses less digits than its factorization.

66410842144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122872 (or 122864 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 66410842144 in words is "sixty-six billion, four hundred ten million, eight hundred forty-two thousand, one hundred forty-four".