26666865122 has 16 divisors (see below), whose sum is σ = 41390442720. Its totient is φ = 12877019232.

The previous prime is 26666865119. The next prime is 26666865131. The reversal of 26666865122 is 22156866662.

It is a super-2 number, since 2×26666865122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734368 + ... + 1749675.

It is an arithmetic number, because the mean of its divisors is an integer number (2586902670).

Almost surely, 2^26666865122 is an apocalyptic number.

26666865122 is a deficient number, since it is larger than the sum of its proper divisors (14723577598).

26666865122 is a wasteful number, since it uses less digits than its factorization.

26666865122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484177.

The product of its digits is 2488320, while the sum is 50.

The spelling of 26666865122 in words is "twenty-six billion, six hundred sixty-six million, eight hundred sixty-five thousand, one hundred twenty-two".