51041243066 has 128 divisors (see below), whose sum is σ = 91942179840. Its totient is φ = 21003840000.

The previous prime is 51041243053. The next prime is 51041243081. The reversal of 51041243066 is 66034214015.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 203351441 + ... + 203351691.

It is an arithmetic number, because the mean of its divisors is an integer number (718298280).

Almost surely, 2^51041243066 is an apocalyptic number.

51041243066 is a deficient number, since it is larger than the sum of its proper divisors (40900936774).

51041243066 is a wasteful number, since it uses less digits than its factorization.

51041243066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 51041243066 in words is "fifty-one billion, forty-one million, two hundred forty-three thousand, sixty-six".