26666260406 has 8 divisors (see below), whose sum is σ = 40094402304. Its totient is φ = 13301459640.

The previous prime is 26666260319. The next prime is 26666260441. The reversal of 26666260406 is 60406266662.

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

It is a super-2 number, since 2×26666260406² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15834230 + ... + 15835913.

It is an arithmetic number, because the mean of its divisors is an integer number (5011800288).

Almost surely, 2^26666260406 is an apocalyptic number.

26666260406 is a deficient number, since it is larger than the sum of its proper divisors (13428141898).

26666260406 is a wasteful number, since it uses less digits than its factorization.

26666260406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31670566.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 26666260406 in words is "twenty-six billion, six hundred sixty-six million, two hundred sixty thousand, four hundred six".