1641299843200 has 384 divisors, whose sum is σ = 4373416333440. Its totient is φ = 606412800000.

The previous prime is 1641299843167. The next prime is 1641299843201. The reversal of 1641299843200 is 23489921461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1641299843201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 969461554 + ... + 969463246.

It is an arithmetic number, because the mean of its divisors is an integer number (11389105035).

Almost surely, 2^{1641299843200} is an apocalyptic number.

1641299843200 is a gapful number since it is divisible by the number (10) 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 1641299843200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2186708166720).

1641299843200 is an abundant number, since it is smaller than the sum of its proper divisors (2732116490240).

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

1641299843200 is a wasteful number, since it uses less digits than its factorization.

1641299843200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 1641299843200 in words is "one trillion, six hundred forty-one billion, two hundred ninety-nine million, eight hundred forty-three thousand, two hundred".