2661351226043 has 8 divisors (see below), whose sum is σ = 2672364549360. Its totient is φ = 2650348015200.

The previous prime is 2661351226031. The next prime is 2661351226069. The reversal of 2661351226043 is 3406221531662.

2661351226043 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2661351226043 - 2³⁶ = 2592631749307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661351226243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000453 + ... + 3053606.

It is an arithmetic number, because the mean of its divisors is an integer number (334045568670).

Almost surely, 2^{2661351226043} is an apocalyptic number.

2661351226043 is a deficient number, since it is larger than the sum of its proper divisors (11013323317).

2661351226043 is a wasteful number, since it uses less digits than its factorization.

2661351226043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056237.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 2661351226043 in words is "two trillion, six hundred sixty-one billion, three hundred fifty-one million, two hundred twenty-six thousand, forty-three".