266552245421154 has 48 divisors (see below), whose sum is σ = 720037234388160. Its totient is φ = 69234349459680.

The previous prime is 266552245421149. The next prime is 266552245421171. The reversal of 266552245421154 is 451124542255662.

266552245421154 is a `hidden beast` number, since 2 + 6 + 6 + 5 + 5 + 22 + 45 + 421 + 154 = 666.

266552245421154 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×266552245421154² (a number of 30 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 266552245421154.

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, 96158817309 + ... + 96158820080.

It is an arithmetic number, because the mean of its divisors is an integer number (15000775716420).

Almost surely, 2^{266552245421154} is an apocalyptic number.

266552245421154 is an abundant number, since it is smaller than the sum of its proper divisors (453484988967006).

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

266552245421154 is a wasteful number, since it uses less digits than its factorization.

266552245421154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192317637415 (or 192317637412 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 54.

The spelling of 266552245421154 in words is "two hundred sixty-six trillion, five hundred fifty-two billion, two hundred forty-five million, four hundred twenty-one thousand, one hundred fifty-four".