26604102612166 has 4 divisors (see below), whose sum is σ = 39906153918252. Its totient is φ = 13302051306082.

The previous prime is 26604102612089. The next prime is 26604102612223. The reversal of 26604102612166 is 66121620140662.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×26604102612166² (a number of 28 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 as a sum of consecutive naturals, namely, 6651025653040 + ... + 6651025653043.

It is an arithmetic number, because the mean of its divisors is an integer number (9976538479563).

Almost surely, 2^{26604102612166} is an apocalyptic number.

26604102612166 is a deficient number, since it is larger than the sum of its proper divisors (13302051306086).

26604102612166 is a wasteful number, since it uses less digits than its factorization.

26604102612166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13302051306085.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 26604102612166 in words is "twenty-six trillion, six hundred four billion, one hundred two million, six hundred twelve thousand, one hundred sixty-six".