266361530460 has 24 divisors (see below), whose sum is σ = 745812285456. Its totient is φ = 71029741440.

The previous prime is 266361530459. The next prime is 266361530473. The reversal of 266361530460 is 64035163662.

It is a happy number.

It is a congruent number.

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, 2219679361 + ... + 2219679480.

It is an arithmetic number, because the mean of its divisors is an integer number (31075511894).

Almost surely, 2^266361530460 is an apocalyptic number.

266361530460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266361530460 is an abundant number, since it is smaller than the sum of its proper divisors (479450754996).

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

266361530460 is a wasteful number, since it uses less digits than its factorization.

266361530460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4439358853 (or 4439358851 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 266361530460 in words is "two hundred sixty-six billion, three hundred sixty-one million, five hundred thirty thousand, four hundred sixty".