26666013300804 has 96 divisors (see below), whose sum is σ = 70139213625600. Its totient is φ = 8759555400960.

The previous prime is 26666013300799. The next prime is 26666013300827. The reversal of 26666013300804 is 40800331066662.

It is a super-2 number, since 2×26666013300804² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26666013300804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16376032 + ... + 17930600.

It is an arithmetic number, because the mean of its divisors is an integer number (730616808600).

Almost surely, 2^{26666013300804} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26666013300804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35069606812800).

26666013300804 is an abundant number, since it is smaller than the sum of its proper divisors (43473200324796).

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

26666013300804 is a wasteful number, since it uses less digits than its factorization.

26666013300804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556890 (or 1556882 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 26666013300804 in words is "twenty-six trillion, six hundred sixty-six billion, thirteen million, three hundred thousand, eight hundred four".