51160480581 has 16 divisors (see below), whose sum is σ = 78021889664. Its totient is φ = 29210912064.

The previous prime is 51160480543. The next prime is 51160480589. The reversal of 51160480581 is 18508406115.

It is not a de Polignac number, because 51160480581 - 2¹⁵ = 51160447813 is a prime.

It is a super-2 number, since 2×51160480581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51160480589) 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, 958750 + ... + 1010703.

It is an arithmetic number, because the mean of its divisors is an integer number (4876368104).

Almost surely, 2^51160480581 is an apocalyptic number.

It is an amenable number.

51160480581 is a deficient number, since it is larger than the sum of its proper divisors (26861409083).

51160480581 is a wasteful number, since it uses less digits than its factorization.

51160480581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970700.

The product of its (nonzero) digits is 38400, while the sum is 39.

Adding to 51160480581 its reverse (18508406115), we get a palindrome (69668886696).

The spelling of 51160480581 in words is "fifty-one billion, one hundred sixty million, four hundred eighty thousand, five hundred eighty-one".