51051105996 has 48 divisors (see below), whose sum is σ = 129997499520. Its totient is φ = 15464171520.

The previous prime is 51051105991. The next prime is 51051106049. The reversal of 51051105996 is 69950115015.

51051105996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×51051105996⁴ (a number of 44 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (51051105991) 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, 283035 + ... + 426861.

It is an arithmetic number, because the mean of its divisors is an integer number (2708281240).

Almost surely, 2^51051105996 is an apocalyptic number.

It is an amenable number.

51051105996 is an abundant number, since it is smaller than the sum of its proper divisors (78946393524).

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

51051105996 is a wasteful number, since it uses less digits than its factorization.

51051105996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146534 (or 146532 counting only the distinct ones).

The product of its (nonzero) digits is 60750, while the sum is 42.

The spelling of 51051105996 in words is "fifty-one billion, fifty-one million, one hundred five thousand, nine hundred ninety-six".