51615161605110 has 16 divisors (see below), whose sum is σ = 123876387852336. Its totient is φ = 13764043094688.

The previous prime is 51615161605109. The next prime is 51615161605123. The reversal of 51615161605110 is 1150616151615.

It is a super-2 number, since 2×51615161605110² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860252693389 + ... + 860252693448.

It is an arithmetic number, because the mean of its divisors is an integer number (7742274240771).

Almost surely, 2^{51615161605110} is an apocalyptic number.

51615161605110 is an abundant number, since it is smaller than the sum of its proper divisors (72261226247226).

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

51615161605110 is a wasteful number, since it uses less digits than its factorization.

51615161605110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720505386847.

The product of its (nonzero) digits is 27000, while the sum is 39.

Adding to 51615161605110 its reverse (1150616151615), we get a palindrome (52765777756725).

The spelling of 51615161605110 in words is "fifty-one trillion, six hundred fifteen billion, one hundred sixty-one million, six hundred five thousand, one hundred ten".