51061121066 has 8 divisors (see below), whose sum is σ = 79921754784. Its totient is φ = 24420536140.

The previous prime is 51061121009. The next prime is 51061121117. The reversal of 51061121066 is 66012116015.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 555012140 + ... + 555012231.

It is an arithmetic number, because the mean of its divisors is an integer number (9990219348).

Almost surely, 2^51061121066 is an apocalyptic number.

51061121066 is a deficient number, since it is larger than the sum of its proper divisors (28860633718).

51061121066 is a wasteful number, since it uses less digits than its factorization.

51061121066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110024396.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 51061121066 in words is "fifty-one billion, sixty-one million, one hundred twenty-one thousand, sixty-six".