51611562130163 has 64 divisors (see below), whose sum is σ = 66037988524032. Its totient is φ = 39363257197440.

The previous prime is 51611562130151. The next prime is 51611562130199. The reversal of 51611562130163 is 36103126511615.

It is not a de Polignac number, because 51611562130163 - 2¹⁶ = 51611562064627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51611562130163.

It is not an unprimeable number, because it can be changed into a prime (51611562130103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13643720 + ... + 17011002.

It is an arithmetic number, because the mean of its divisors is an integer number (1031843570688).

Almost surely, 2^{51611562130163} is an apocalyptic number.

51611562130163 is a deficient number, since it is larger than the sum of its proper divisors (14426426393869).

51611562130163 is a wasteful number, since it uses less digits than its factorization.

51611562130163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367464.

The product of its (nonzero) digits is 97200, while the sum is 41.

Adding to 51611562130163 its reverse (36103126511615), we get a palindrome (87714688641778).

The spelling of 51611562130163 in words is "fifty-one trillion, six hundred eleven billion, five hundred sixty-two million, one hundred thirty thousand, one hundred sixty-three".