2040606405121 has 4 divisors (see below), whose sum is σ = 2040748020144. Its totient is φ = 2040464790100.

The previous prime is 2040606405091. The next prime is 2040606405151. The reversal of 2040606405121 is 1215046060402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2040606405091) and next prime (2040606405151).

It is a cyclic number.

It is not a de Polignac number, because 2040606405121 - 2¹³ = 2040606396929 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2040606405151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70785895 + ... + 70814716.

It is an arithmetic number, because the mean of its divisors is an integer number (510187005036).

Almost surely, 2^{2040606405121} is an apocalyptic number.

It is an amenable number.

2040606405121 is a deficient number, since it is larger than the sum of its proper divisors (141615023).

2040606405121 is a wasteful number, since it uses less digits than its factorization.

2040606405121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141615022.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 2040606405121 in words is "two trillion, forty billion, six hundred six million, four hundred five thousand, one hundred twenty-one".