266646426060 has 48 divisors (see below), whose sum is σ = 853268564736. Its totient is φ = 60947754432.

The previous prime is 266646426023. The next prime is 266646426061. The reversal of 266646426060 is 60624646662.

It is a super-2 number, since 2×266646426060² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266646426061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317435802 + ... + 317436641.

It is an arithmetic number, because the mean of its divisors is an integer number (17776428432).

Almost surely, 2^266646426060 is an apocalyptic number.

266646426060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266646426060 is an abundant number, since it is smaller than the sum of its proper divisors (586622138676).

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

266646426060 is a wasteful number, since it uses less digits than its factorization.

266646426060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634872462 (or 634872460 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 266646426060 in words is "two hundred sixty-six billion, six hundred forty-six million, four hundred twenty-six thousand, sixty".