1944408542160 has 80 divisors (see below), whose sum is σ = 6888761698176. Its totient is φ = 444436237824.

The previous prime is 1944408542137. The next prime is 1944408542161. The reversal of 1944408542160 is 612458044491.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1944408542161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578691339 + ... + 578694698.

Almost surely, 2^{1944408542160} is an apocalyptic number.

1944408542160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1944408542160 is an abundant number, since it is smaller than the sum of its proper divisors (4944353156016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1944408542160 is a wasteful number, since it uses less digits than its factorization.

1944408542160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157386060 (or 1157386054 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 1944408542160 in words is "one trillion, nine hundred forty-four billion, four hundred eight million, five hundred forty-two thousand, one hundred sixty".