1646074409112 has 384 divisors, whose sum is σ = 5359955328000. Its totient is φ = 466693436160.

The previous prime is 1646074409039. The next prime is 1646074409117. The reversal of 1646074409112 is 2119044706461.

1646074409112 is a `hidden beast` number, since 1 + 6 + 4 + 60 + 74 + 409 + 112 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1646074409117) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1584286689 + ... + 1584287727.

It is an arithmetic number, because the mean of its divisors is an integer number (13958217000).

Almost surely, 2^{1646074409112} is an apocalyptic number.

1646074409112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1646074409112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679977664000).

1646074409112 is an abundant number, since it is smaller than the sum of its proper divisors (3713880918888).

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

1646074409112 is a wasteful number, since it uses less digits than its factorization.

1646074409112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2059 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 1646074409112 in words is "one trillion, six hundred forty-six billion, seventy-four million, four hundred nine thousand, one hundred twelve".