51669072576 has 336 divisors, whose sum is σ = 164317241088. Its totient is φ = 15393024000.

The previous prime is 51669072563. The next prime is 51669072583. The reversal of 51669072576 is 67527096615.

51669072576 is a `hidden beast` number, since 5 + 1 + 6 + 69 + 0 + 7 + 2 + 576 = 666.

51669072576 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168303015 + ... + 168303321.

It is an arithmetic number, because the mean of its divisors is an integer number (489039408).

Almost surely, 2^51669072576 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 51669072576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82158620544).

51669072576 is an abundant number, since it is smaller than the sum of its proper divisors (112648168512).

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

51669072576 is a wasteful number, since it uses less digits than its factorization.

51669072576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 54.

The spelling of 51669072576 in words is "fifty-one billion, six hundred sixty-nine million, seventy-two thousand, five hundred seventy-six".