51663206034 has 96 divisors (see below), whose sum is σ = 123038046144. Its totient is φ = 15537392640.

The previous prime is 51663205967. The next prime is 51663206039. The reversal of 51663206034 is 43060236615.

51663206034 is a `hidden beast` number, since 5 + 16 + 6 + 32 + 0 + 603 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 51663206034.

It is not an unprimeable number, because it can be changed into a prime (51663206039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15545497 + ... + 15548819.

It is an arithmetic number, because the mean of its divisors is an integer number (1281646314).

Almost surely, 2^51663206034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51663206034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61519023072).

51663206034 is an abundant number, since it is smaller than the sum of its proper divisors (71374840110).

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

51663206034 is a wasteful number, since it uses less digits than its factorization.

51663206034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3909 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 51663206034 in words is "fifty-one billion, six hundred sixty-three million, two hundred six thousand, thirty-four".