266461560 has 48 divisors (see below), whose sum is σ = 866001240. Its totient is φ = 71056320.

The previous prime is 266461511. The next prime is 266461577. The reversal of 266461560 is 65164662.

It is a happy number.

266461560 is a `hidden beast` number, since 2 + 6 + 646 + 1 + 5 + 6 + 0 = 666.

266461560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369726 + ... + 370445.

Almost surely, 2^266461560 is an apocalyptic number.

266461560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266461560 is an abundant number, since it is smaller than the sum of its proper divisors (599539680).

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

266461560 is a wasteful number, since it uses less digits than its factorization.

266461560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740188 (or 740181 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 266461560 is about 16323.6503270561. The cubic root of 266461560 is about 643.4945238186.

The spelling of 266461560 in words is "two hundred sixty-six million, four hundred sixty-one thousand, five hundred sixty".