261760043232 has 72 divisors (see below), whose sum is σ = 771949780056. Its totient is φ = 87253345152.

The previous prime is 261760043227. The next prime is 261760043257. The reversal of 261760043232 is 232340067162.

261760043232 is a `hidden beast` number, since 2 + 6 + 1 + 7 + 600 + 43 + 2 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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, 16823503 + ... + 16839054.

It is an arithmetic number, because the mean of its divisors is an integer number (10721524723).

Almost surely, 2^261760043232 is an apocalyptic number.

It is an amenable number.

261760043232 is an abundant number, since it is smaller than the sum of its proper divisors (510189736824).

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

261760043232 is an equidigital number, since it uses as much as digits as its factorization.

261760043232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33662582 (or 33662562 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 261760043232 in words is "two hundred sixty-one billion, seven hundred sixty million, forty-three thousand, two hundred thirty-two".