51065543313 has 16 divisors (see below), whose sum is σ = 80102813760. Its totient is φ = 32041124928.

The previous prime is 51065543311. The next prime is 51065543369. The reversal of 51065543313 is 31334556015.

51065543313 is a `hidden beast` number, since 5 + 106 + 5 + 543 + 3 + 1 + 3 = 666.

It is not a de Polignac number, because 51065543313 - 2¹ = 51065543311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51065543311) 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, 55626495 + ... + 55627412.

It is an arithmetic number, because the mean of its divisors is an integer number (5006425860).

Almost surely, 2^51065543313 is an apocalyptic number.

It is an amenable number.

51065543313 is a deficient number, since it is larger than the sum of its proper divisors (29037270447).

51065543313 is a wasteful number, since it uses less digits than its factorization.

51065543313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111253933 (or 111253927 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 51065543313 in words is "fifty-one billion, sixty-five million, five hundred forty-three thousand, three hundred thirteen".