2040021511200 has 432 divisors, whose sum is σ = 7335978904800. Its totient is φ = 533346140160.

The previous prime is 2040021511133. The next prime is 2040021511223. The reversal of 2040021511200 is 21151200402.

2040021511200 is a `hidden beast` number, since 20 + 400 + 215 + 11 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 74715151 + ... + 74742449.

It is an arithmetic number, because the mean of its divisors is an integer number (16981432650).

Almost surely, 2^{2040021511200} is an apocalyptic number.

2040021511200 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 2040021511200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3667989452400).

2040021511200 is an abundant number, since it is smaller than the sum of its proper divisors (5295957393600).

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

2040021511200 is a wasteful number, since it uses less digits than its factorization.

2040021511200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27529 (or 27513 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 2040021511200 its reverse (21151200402), we get a palindrome (2061172711602).

The spelling of 2040021511200 in words is "two trillion, forty billion, twenty-one million, five hundred eleven thousand, two hundred".