1816652880000 has 1280 divisors, whose sum is σ = 7721733254400. Its totient is φ = 411734016000.

The previous prime is 1816652879999. The next prime is 1816652880001. The reversal of 1816652880000 is 882566181.

It is an interprime number because it is at equal distance from previous prime (1816652879999) and next prime (1816652880001).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1816652880001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2071439562 + ... + 2071440438.

It is an arithmetic number, because the mean of its divisors is an integer number (6032604105).

Almost surely, 2^{1816652880000} is an apocalyptic number.

1816652880000 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 1816652880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3860866627200).

1816652880000 is an abundant number, since it is smaller than the sum of its proper divisors (5905080374400).

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

1816652880000 is an equidigital number, since it uses as much as digits as its factorization.

1816652880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 1816652880000 in words is "one trillion, eight hundred sixteen billion, six hundred fifty-two million, eight hundred eighty thousand".