51610214064 has 80 divisors (see below), whose sum is σ = 142034659200. Its totient is φ = 16101577728.

The previous prime is 51610214041. The next prime is 51610214093. The reversal of 51610214064 is 46041201615.

It is a super-2 number, since 2×51610214064² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265209 + ... + 416600.

It is an arithmetic number, because the mean of its divisors is an integer number (1775433240).

Almost surely, 2^51610214064 is an apocalyptic number.

It is an amenable number.

51610214064 is an abundant number, since it is smaller than the sum of its proper divisors (90424445136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51610214064 is a wasteful number, since it uses less digits than its factorization.

51610214064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681922 (or 681916 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 51610214064 its reverse (46041201615), we get a palindrome (97651415679).

The spelling of 51610214064 in words is "fifty-one billion, six hundred ten million, two hundred fourteen thousand, sixty-four".