2100040156000 has 96 divisors (see below), whose sum is σ = 5162566080672. Its totient is φ = 839565529600.

The previous prime is 2100040155973. The next prime is 2100040156013. The reversal of 2100040156000 is 6510400012.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7368147 + ... + 7647853.

It is an arithmetic number, because the mean of its divisors is an integer number (53776730007).

Almost surely, 2^{2100040156000} is an apocalyptic number.

2100040156000 is a gapful number since it is divisible by the number (20) 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 2100040156000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2581283040336).

2100040156000 is an abundant number, since it is smaller than the sum of its proper divisors (3062525924672).

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

2100040156000 is a wasteful number, since it uses less digits than its factorization.

2100040156000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281609 (or 281591 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 2100040156000 its reverse (6510400012), we get a palindrome (2106550556012).

The spelling of 2100040156000 in words is "two trillion, one hundred billion, forty million, one hundred fifty-six thousand".