266010201366550 has 24 divisors (see below), whose sum is σ = 494780781748752. Its totient is φ = 106403691900000.

The previous prime is 266010201366509. The next prime is 266010201366557. The reversal of 266010201366550 is 55663102010662.

It is a super-2 number, since 2×266010201366550² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266010201366497 and 266010201366506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266010201366557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4310260 + ... + 23464840.

It is an arithmetic number, because the mean of its divisors is an integer number (20615865906198).

Almost surely, 2^{266010201366550} is an apocalyptic number.

266010201366550 is a deficient number, since it is larger than the sum of its proper divisors (228770580382202).

266010201366550 is a wasteful number, since it uses less digits than its factorization.

266010201366550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19432344 (or 19432339 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 266010201366550 in words is "two hundred sixty-six trillion, ten billion, two hundred one million, three hundred sixty-six thousand, five hundred fifty".