26666666666 has 16 divisors (see below), whose sum is σ = 40344000000. Its totient is φ = 13219067808.

The previous prime is 26666666657. The next prime is 26666666681. The reversal of 26666666666 is 66666666662.

It is a super-4 number, since 4×26666666666⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

26666666666 is a modest number, since divided by 666666 gives 26666 as remainder.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 26666666599 and 26666666608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33335 + ... + 233333.

It is an arithmetic number, because the mean of its divisors is an integer number (2521500000).

Almost surely, 2^26666666666 is an apocalyptic number.

26666666666 is a deficient number, since it is larger than the sum of its proper divisors (13677333334).

26666666666 is a wasteful number, since it uses less digits than its factorization.

26666666666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200573.

The product of its digits is 120932352, while the sum is 62.

The spelling of 26666666666 in words is "twenty-six billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-six".