266874194305776 has 40 divisors (see below), whose sum is σ = 689450842877440. Its totient is φ = 88954730456256.

The previous prime is 266874194305769. The next prime is 266874194305811. The reversal of 266874194305776 is 677503491478662.

It is a junction number, because it is equal to n+sod(n) for n = 266874194305698 and 266874194305707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102903136 + ... + 105464703.

It is an arithmetic number, because the mean of its divisors is an integer number (17236271071936).

It is a 1-persistent number, because it is pandigital, but 2⋅266874194305776 = 533748388611552 is not.

Almost surely, 2^{266874194305776} is an apocalyptic number.

It is an amenable number.

266874194305776 is an abundant number, since it is smaller than the sum of its proper divisors (422576648571664).

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

266874194305776 is a wasteful number, since it uses less digits than its factorization.

266874194305776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208394533 (or 208394527 counting only the distinct ones).

The product of its (nonzero) digits is 2560481280, while the sum is 75.

The spelling of 266874194305776 in words is "two hundred sixty-six trillion, eight hundred seventy-four billion, one hundred ninety-four million, three hundred five thousand, seven hundred seventy-six".