266198020003 has 16 divisors (see below), whose sum is σ = 287212516416. Its totient is φ = 245779855360.

The previous prime is 266198019979. The next prime is 266198020019. The reversal of 266198020003 is 300020891662.

It is a cyclic number.

It is not a de Polignac number, because 266198020003 - 2²⁵ = 266164465571 is a prime.

It is a super-2 number, since 2×266198020003² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266198020093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9348075 + ... + 9376507.

It is an arithmetic number, because the mean of its divisors is an integer number (17950782276).

Almost surely, 2^266198020003 is an apocalyptic number.

266198020003 is a deficient number, since it is larger than the sum of its proper divisors (21014496413).

266198020003 is a wasteful number, since it uses less digits than its factorization.

266198020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38894.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 266198020003 in words is "two hundred sixty-six billion, one hundred ninety-eight million, twenty thousand, three".