5205501501161 has 32 divisors (see below), whose sum is σ = 5917596115200. Its totient is φ = 4539367526400.

The previous prime is 5205501501077. The next prime is 5205501501181. The reversal of 5205501501161 is 1611051055025.

It is a cyclic number.

It is not a de Polignac number, because 5205501501161 - 2³⁰ = 5204427759337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5205501501181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218697461 + ... + 218721261.

It is an arithmetic number, because the mean of its divisors is an integer number (184924878600).

Almost surely, 2^{5205501501161} is an apocalyptic number.

It is an amenable number.

5205501501161 is a deficient number, since it is larger than the sum of its proper divisors (712094614039).

5205501501161 is a wasteful number, since it uses less digits than its factorization.

5205501501161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26289.

The product of its (nonzero) digits is 7500, while the sum is 32.

Adding to 5205501501161 its reverse (1611051055025), we get a palindrome (6816552556186).

The spelling of 5205501501161 in words is "five trillion, two hundred five billion, five hundred one million, five hundred one thousand, one hundred sixty-one".