51126995161 has 8 divisors (see below), whose sum is σ = 56117083104. Its totient is φ = 46193937120.

The previous prime is 51126995081. The next prime is 51126995189. The reversal of 51126995161 is 16159962115.

51126995161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51126995161 - 2³³ = 42537060569 is a prime.

It is a super-2 number, since 2×51126995161² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51126995761) 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, 14255596 + ... + 14259181.

It is an arithmetic number, because the mean of its divisors is an integer number (7014635388).

Almost surely, 2^51126995161 is an apocalyptic number.

It is an amenable number.

51126995161 is a deficient number, since it is larger than the sum of its proper divisors (4990087943).

51126995161 is a wasteful number, since it uses less digits than its factorization.

51126995161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28514951.

The product of its digits is 145800, while the sum is 46.

The spelling of 51126995161 in words is "fifty-one billion, one hundred twenty-six million, nine hundred ninety-five thousand, one hundred sixty-one".