51066630608 has 80 divisors (see below), whose sum is σ = 115075551360. Its totient is φ = 21499250688.

The previous prime is 51066630607. The next prime is 51066630611. The reversal of 51066630608 is 80603666015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066630607) 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, 17291660 + ... + 17294612.

It is an arithmetic number, because the mean of its divisors is an integer number (1438444392).

Almost surely, 2^51066630608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51066630608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57537775680).

51066630608 is an abundant number, since it is smaller than the sum of its proper divisors (64008920752).

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

51066630608 is a wasteful number, since it uses less digits than its factorization.

51066630608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644 (or 5638 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 51066630608 in words is "fifty-one billion, sixty-six million, six hundred thirty thousand, six hundred eight".