261006182048 has 12 divisors (see below), whose sum is σ = 513855920970. Its totient is φ = 130503091008.

The previous prime is 261006182027. The next prime is 261006182051. The reversal of 261006182048 is 840281600162.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 204691095184 + 56315086864 = 452428^2 + 237308^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4078221563 + ... + 4078221626.

Almost surely, 2^261006182048 is an apocalyptic number.

It is an amenable number.

261006182048 is a deficient number, since it is larger than the sum of its proper divisors (252849738922).

261006182048 is an equidigital number, since it uses as much as digits as its factorization.

261006182048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156443199 (or 8156443191 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 261006182048 in words is "two hundred sixty-one billion, six million, one hundred eighty-two thousand, forty-eight".