1631665440112 has 40 divisors (see below), whose sum is σ = 3181611430800. Its totient is φ = 810607150080.

The previous prime is 1631665440071. The next prime is 1631665440133. The reversal of 1631665440112 is 2110445661361.

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, 9725514 + ... + 9891862.

It is an arithmetic number, because the mean of its divisors is an integer number (79540285770).

Almost surely, 2^{1631665440112} is an apocalyptic number.

It is an amenable number.

1631665440112 is a deficient number, since it is larger than the sum of its proper divisors (1549945990688).

1631665440112 is a wasteful number, since it uses less digits than its factorization.

1631665440112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170281 (or 170275 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1631665440112 in words is "one trillion, six hundred thirty-one billion, six hundred sixty-five million, four hundred forty thousand, one hundred twelve".