51516560211 has 8 divisors (see below), whose sum is σ = 68690212800. Its totient is φ = 34343640552.

The previous prime is 51516560201. The next prime is 51516560243. The reversal of 51516560211 is 11206561515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51516560211 - 2¹³ = 51516552019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51516560201) 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, 9840 + ... + 321138.

It is an arithmetic number, because the mean of its divisors is an integer number (8586276600).

Almost surely, 2^51516560211 is an apocalyptic number.

51516560211 is a deficient number, since it is larger than the sum of its proper divisors (17173652589).

51516560211 is a wasteful number, since it uses less digits than its factorization.

51516560211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366465.

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 51516560211 in words is "fifty-one billion, five hundred sixteen million, five hundred sixty thousand, two hundred eleven".