51551050016 has 24 divisors (see below), whose sum is σ = 101499436080. Its totient is φ = 25773415488.

The previous prime is 51551049989. The next prime is 51551050027. The reversal of 51551050016 is 61005015515.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376955 + ... + 495173.

It is an arithmetic number, because the mean of its divisors is an integer number (4229143170).

Almost surely, 2^51551050016 is an apocalyptic number.

It is an amenable number.

51551050016 is a deficient number, since it is larger than the sum of its proper divisors (49948386064).

51551050016 is a wasteful number, since it uses less digits than its factorization.

51551050016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131856 (or 131848 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 51551050016 in words is "fifty-one billion, five hundred fifty-one million, fifty thousand, sixteen".