51643661614316 has 12 divisors (see below), whose sum is σ = 90376784916432. Its totient is φ = 25821723066768.

The previous prime is 51643661614289. The next prime is 51643661614327. The reversal of 51643661614316 is 61341616634615.

It is a super-2 number, since 2×51643661614316² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25851755 + ... + 27777698.

It is an arithmetic number, because the mean of its divisors is an integer number (7531398743036).

Almost surely, 2^{51643661614316} is an apocalyptic number.

It is an amenable number.

51643661614316 is a deficient number, since it is larger than the sum of its proper divisors (38733123302116).

51643661614316 is a wasteful number, since it uses less digits than its factorization.

51643661614316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53870200 (or 53870198 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 53.

The spelling of 51643661614316 in words is "fifty-one trillion, six hundred forty-three billion, six hundred sixty-one million, six hundred fourteen thousand, three hundred sixteen".