51102361564 has 24 divisors (see below), whose sum is σ = 89703532800. Its totient is φ = 25472829936.

The previous prime is 51102361537. The next prime is 51102361577. The reversal of 51102361564 is 46516320115.

It is a super-2 number, since 2×51102361564² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7481919 + ... + 7488745.

It is an arithmetic number, because the mean of its divisors is an integer number (3737647200).

Almost surely, 2^51102361564 is an apocalyptic number.

It is an amenable number.

51102361564 is a deficient number, since it is larger than the sum of its proper divisors (38601171236).

51102361564 is a wasteful number, since it uses less digits than its factorization.

51102361564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12297 (or 12295 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 51102361564 its reverse (46516320115), we get a palindrome (97618681679).

The spelling of 51102361564 in words is "fifty-one billion, one hundred two million, three hundred sixty-one thousand, five hundred sixty-four".