51650506116 has 48 divisors (see below), whose sum is σ = 146082242880. Its totient is φ = 15651668160.

The previous prime is 51650506111. The next prime is 51650506121. The reversal of 51650506116 is 61160505615.

It is an interprime number because it is at equal distance from previous prime (51650506111) and next prime (51650506121).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (51650506111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21737241 + ... + 21739616.

It is an arithmetic number, because the mean of its divisors is an integer number (3043380060).

Almost surely, 2^51650506116 is an apocalyptic number.

It is an amenable number.

51650506116 is an abundant number, since it is smaller than the sum of its proper divisors (94431736764).

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

51650506116 is a wasteful number, since it uses less digits than its factorization.

51650506116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43476881 (or 43476873 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 51650506116 in words is "fifty-one billion, six hundred fifty million, five hundred six thousand, one hundred sixteen".