51161160101604 has 36 divisors (see below), whose sum is σ = 138866005991664. Its totient is φ = 14617474314576.

The previous prime is 51161160101599. The next prime is 51161160101629. The reversal of 51161160101604 is 40610106116115.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43504387254 + ... + 43504388429.

It is an arithmetic number, because the mean of its divisors is an integer number (3857389055324).

Almost surely, 2^{51161160101604} is an apocalyptic number.

It is an amenable number.

51161160101604 is an abundant number, since it is smaller than the sum of its proper divisors (87704845890060).

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

51161160101604 is a wasteful number, since it uses less digits than its factorization.

51161160101604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87008775704 (or 87008775695 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 33.

Adding to 51161160101604 its reverse (40610106116115), we get a palindrome (91771266217719).

The spelling of 51161160101604 in words is "fifty-one trillion, one hundred sixty-one billion, one hundred sixty million, one hundred one thousand, six hundred four".