2040001523640 has 96 divisors (see below), whose sum is σ = 6635198306880. Its totient is φ = 543574285056.

The previous prime is 2040001523569. The next prime is 2040001523687. The reversal of 2040001523640 is 463251000402.

2040001523640 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 0 + 0 + 15 + 2 + 3 + 640 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1759024 + ... + 2678463.

It is an arithmetic number, because the mean of its divisors is an integer number (69116649030).

Almost surely, 2^{2040001523640} is an apocalyptic number.

2040001523640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040001523640 is an abundant number, since it is smaller than the sum of its proper divisors (4595196783240).

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

2040001523640 is a wasteful number, since it uses less digits than its factorization.

2040001523640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4438781 (or 4438774 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 2040001523640 in words is "two trillion, forty billion, one million, five hundred twenty-three thousand, six hundred forty".