26660642000206 has 8 divisors (see below), whose sum is σ = 39991593773880. Its totient is φ = 13330110742248.

The previous prime is 26660642000203. The next prime is 26660642000233. The reversal of 26660642000206 is 60200024606662.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26660642000203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104970381 + ... + 105224056.

It is an arithmetic number, because the mean of its divisors is an integer number (4998949221735).

Almost surely, 2^{26660642000206} is an apocalyptic number.

26660642000206 is a deficient number, since it is larger than the sum of its proper divisors (13330951773674).

26660642000206 is a wasteful number, since it uses less digits than its factorization.

26660642000206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210257858.

The product of its (nonzero) digits is 248832, while the sum is 40.

Adding to 26660642000206 its reverse (60200024606662), we get a palindrome (86860666606868).

The spelling of 26660642000206 in words is "twenty-six trillion, six hundred sixty billion, six hundred forty-two million, two hundred six", and thus it is an aban number.