51630377303616 has 112 divisors (see below), whose sum is σ = 137887582008384. Its totient is φ = 17048600559616.

The previous prime is 51630377303611. The next prime is 51630377303627. The reversal of 51630377303616 is 61630377303615.

It is not an unprimeable number, because it can be changed into a prime (51630377303611) 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, 941565736 + ... + 941620568.

Almost surely, 2^{51630377303616} 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 51630377303616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68943791004192).

51630377303616 is an abundant number, since it is smaller than the sum of its proper divisors (86257204704768).

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

51630377303616 is a wasteful number, since it uses less digits than its factorization.

51630377303616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100788 (or 100778 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 51.

Subtracting 51630377303616 from its reverse (61630377303615), we obtain a palindrome (9999999999999).

The spelling of 51630377303616 in words is "fifty-one trillion, six hundred thirty billion, three hundred seventy-seven million, three hundred three thousand, six hundred sixteen".