2660226444403 has 4 divisors (see below), whose sum is σ = 2902065212088. Its totient is φ = 2418387676720.

The previous prime is 2660226444397. The next prime is 2660226444437. The reversal of 2660226444403 is 3044446220662.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2660226444403 - 2⁹ = 2660226443891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660226444403.

It is not an unprimeable number, because it can be changed into a prime (2660224444403) 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, 120919383826 + ... + 120919383847.

It is an arithmetic number, because the mean of its divisors is an integer number (725516303022).

Almost surely, 2^{2660226444403} is an apocalyptic number.

2660226444403 is a deficient number, since it is larger than the sum of its proper divisors (241838767685).

2660226444403 is a wasteful number, since it uses less digits than its factorization.

2660226444403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241838767684.

The product of its (nonzero) digits is 1327104, while the sum is 43.

The spelling of 2660226444403 in words is "two trillion, six hundred sixty billion, two hundred twenty-six million, four hundred forty-four thousand, four hundred three".