266017662220 has 96 divisors (see below), whose sum is σ = 580304793600. Its totient is φ = 102369256704.

The previous prime is 266017662217. The next prime is 266017662259. The reversal of 266017662220 is 22266710662.

It is a super-2 number, since 2×266017662220² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16997719 + ... + 17013361.

It is an arithmetic number, because the mean of its divisors is an integer number (6044841600).

Almost surely, 2^266017662220 is an apocalyptic number.

266017662220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266017662220 is an abundant number, since it is smaller than the sum of its proper divisors (314287131380).

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

266017662220 is a wasteful number, since it uses less digits than its factorization.

266017662220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16007 (or 16005 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 266017662220 in words is "two hundred sixty-six billion, seventeen million, six hundred sixty-two thousand, two hundred twenty".