51060516345 has 80 divisors (see below), whose sum is σ = 98504440848. Its totient is φ = 25209999360.

The previous prime is 51060516341. The next prime is 51060516391. The reversal of 51060516345 is 54361506015.

51060516345 is a `hidden beast` number, since 5 + 1 + 0 + 605 + 1 + 6 + 3 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 6392961936 + 44667554409 = 79956^2 + 211347^2 .

It is not a de Polignac number, because 51060516345 - 2² = 51060516341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51060516341) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 359197 + ... + 480773.

Almost surely, 2^51060516345 is an apocalyptic number.

It is an amenable number.

51060516345 is a deficient number, since it is larger than the sum of its proper divisors (47443924503).

51060516345 is a wasteful number, since it uses less digits than its factorization.

51060516345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121672 (or 121663 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 51060516345 in words is "fifty-one billion, sixty million, five hundred sixteen thousand, three hundred forty-five".