51011065196 has 24 divisors (see below), whose sum is σ = 109869987360. Its totient is φ = 20180201472.

The previous prime is 51011065159. The next prime is 51011065199. The reversal of 51011065196 is 69156011015.

It is not an unprimeable number, because it can be changed into a prime (51011065199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70069781 + ... + 70070508.

It is an arithmetic number, because the mean of its divisors is an integer number (4577916140).

Almost surely, 2^51011065196 is an apocalyptic number.

It is an amenable number.

51011065196 is an abundant number, since it is smaller than the sum of its proper divisors (58858922164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51011065196 is a wasteful number, since it uses less digits than its factorization.

51011065196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140140313 (or 140140311 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 35.

The spelling of 51011065196 in words is "fifty-one billion, eleven million, sixty-five thousand, one hundred ninety-six".