266606466220 has 24 divisors (see below), whose sum is σ = 560555554608. Its totient is φ = 106512686400.

The previous prime is 266606466193. The next prime is 266606466233. The reversal of 266606466220 is 22664606662.

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, 8101926 + ... + 8134765.

It is an arithmetic number, because the mean of its divisors is an integer number (23356481442).

Almost surely, 2^266606466220 is an apocalyptic number.

266606466220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266606466220 is an abundant number, since it is smaller than the sum of its proper divisors (293949088388).

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

266606466220 is a wasteful number, since it uses less digits than its factorization.

266606466220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16237521 (or 16237519 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The spelling of 266606466220 in words is "two hundred sixty-six billion, six hundred six million, four hundred sixty-six thousand, two hundred twenty".