51013385966 has 16 divisors (see below), whose sum is σ = 78792594048. Its totient is φ = 24755635200.

The previous prime is 51013385887. The next prime is 51013385971. The reversal of 51013385966 is 66958331015.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51013385966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595870 + ... + 1627521.

It is an arithmetic number, because the mean of its divisors is an integer number (4924537128).

Almost surely, 2^51013385966 is an apocalyptic number.

51013385966 is a deficient number, since it is larger than the sum of its proper divisors (27779208082).

51013385966 is a wasteful number, since it uses less digits than its factorization.

51013385966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223627.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 51013385966 in words is "fifty-one billion, thirteen million, three hundred eighty-five thousand, nine hundred sixty-six".