26666544566662 has 48 divisors (see below), whose sum is σ = 54665084395152. Its totient is φ = 9590365673280.

The previous prime is 26666544566587. The next prime is 26666544566719.

26666544566662 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×26666544566662² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26666544566591 and 26666544566600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 951411153 + ... + 951439180.

It is an arithmetic number, because the mean of its divisors is an integer number (1138855924899).

Almost surely, 2^{26666544566662} is an apocalyptic number.

26666544566662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26666544566662 is an abundant number, since it is smaller than the sum of its proper divisors (27998539828490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26666544566662 is a wasteful number, since it uses less digits than its factorization.

26666544566662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902850373 (or 1902850366 counting only the distinct ones).

The product of its digits is 2687385600, while the sum is 70.

The spelling of 26666544566662 in words is "twenty-six trillion, six hundred sixty-six billion, five hundred forty-four million, five hundred sixty-six thousand, six hundred sixty-two".