266412180 has 48 divisors (see below), whose sum is σ = 746794944. Its totient is φ = 70963200.

The previous prime is 266412161. The next prime is 266412191. The reversal of 266412180 is 81214662.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67255 + ... + 71105.

It is an arithmetic number, because the mean of its divisors is an integer number (15558228).

Almost surely, 2^266412180 is an apocalyptic number.

266412180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266412180 is an abundant number, since it is smaller than the sum of its proper divisors (480382764).

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

266412180 is a wasteful number, since it uses less digits than its factorization.

266412180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 266412180 is about 16322.1377276385. The cubic root of 266412180 is about 643.4547710894.

The spelling of 266412180 in words is "two hundred sixty-six million, four hundred twelve thousand, one hundred eighty".