51650651516 has 24 divisors (see below), whose sum is σ = 90510727104. Its totient is φ = 25790473280.

The previous prime is 51650651513. The next prime is 51650651527. The reversal of 51650651516 is 61515605615.

51650651516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51650651513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17084381 + ... + 17087403.

It is an arithmetic number, because the mean of its divisors is an integer number (3771280296).

Almost surely, 2^51650651516 is an apocalyptic number.

It is an amenable number.

51650651516 is a deficient number, since it is larger than the sum of its proper divisors (38860075588).

51650651516 is a wasteful number, since it uses less digits than its factorization.

51650651516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7381 (or 7379 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 51650651516 in words is "fifty-one billion, six hundred fifty million, six hundred fifty-one thousand, five hundred sixteen".