1666316633144 has 64 divisors (see below), whose sum is σ = 3218553761280. Its totient is φ = 808315200000.

The previous prime is 1666316633131. The next prime is 1666316633153. The reversal of 1666316633144 is 4413366136661.

It is a super-2 number, since 2×1666316633144² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1666316633092 and 1666316633101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30830144 + ... + 30884144.

It is an arithmetic number, because the mean of its divisors is an integer number (50289902520).

Almost surely, 2^{1666316633144} is an apocalyptic number.

It is an amenable number.

1666316633144 is a deficient number, since it is larger than the sum of its proper divisors (1552237128136).

1666316633144 is a wasteful number, since it uses less digits than its factorization.

1666316633144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54652 (or 54648 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 50.

The spelling of 1666316633144 in words is "one trillion, six hundred sixty-six billion, three hundred sixteen million, six hundred thirty-three thousand, one hundred forty-four".