261063333206 has 16 divisors (see below), whose sum is σ = 421732500000. Its totient is φ = 120486538368.

The previous prime is 261063333199. The next prime is 261063333263. The reversal of 261063333206 is 602333360162.

261063333206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651815 + ... + 973133.

It is an arithmetic number, because the mean of its divisors is an integer number (26358281250).

Almost surely, 2^261063333206 is an apocalyptic number.

261063333206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

261063333206 is a deficient number, since it is larger than the sum of its proper divisors (160669166794).

261063333206 is a wasteful number, since it uses less digits than its factorization.

261063333206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352583.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 261063333206 its reverse (602333360162), we get a palindrome (863396693368).

The spelling of 261063333206 in words is "two hundred sixty-one billion, sixty-three million, three hundred thirty-three thousand, two hundred six".