266166322115 has 8 divisors (see below), whose sum is σ = 327189820608. Its totient is φ = 207739568320.

The previous prime is 266166322087. The next prime is 266166322117. The reversal of 266166322115 is 511223661662.

It is a happy number.

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

It is not a de Polignac number, because 266166322115 - 2³² = 261871354819 is a prime.

It is a super-2 number, since 2×266166322115² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266166322117) 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, 649185947 + ... + 649186356.

It is an arithmetic number, because the mean of its divisors is an integer number (40898727576).

Almost surely, 2^266166322115 is an apocalyptic number.

266166322115 is a deficient number, since it is larger than the sum of its proper divisors (61023498493).

266166322115 is a wasteful number, since it uses less digits than its factorization.

266166322115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298372349.

The product of its digits is 155520, while the sum is 41.

Adding to 266166322115 its reverse (511223661662), we get a palindrome (777389983777).

The spelling of 266166322115 in words is "two hundred sixty-six billion, one hundred sixty-six million, three hundred twenty-two thousand, one hundred fifteen".