666226203115 has 16 divisors (see below), whose sum is σ = 875392881120. Its totient is φ = 482726917120.

The previous prime is 666226203073. The next prime is 666226203187. The reversal of 666226203115 is 511302622666.

It is a happy number.

It is not a de Polignac number, because 666226203115 - 2²⁵ = 666192648683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22500454 + ... + 22530043.

It is an arithmetic number, because the mean of its divisors is an integer number (54712055070).

Almost surely, 2^666226203115 is an apocalyptic number.

666226203115 is a deficient number, since it is larger than the sum of its proper divisors (209166678005).

666226203115 is a wasteful number, since it uses less digits than its factorization.

666226203115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45030782.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 666226203115 in words is "six hundred sixty-six billion, two hundred twenty-six million, two hundred three thousand, one hundred fifteen".