5615880161 has 2 divisors, whose sum is σ = 5615880162. Its totient is φ = 5615880160.

The previous prime is 5615880143. The next prime is 5615880173. The reversal of 5615880161 is 1610885165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4717079761 + 898800400 = 68681^2 + 29980^2 .

It is a cyclic number.

It is not a de Polignac number, because 5615880161 - 2²⁶ = 5548771297 is a prime.

It is not a weakly prime, because it can be changed into another prime (5615880121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807940080 + 2807940081.

It is an arithmetic number, because the mean of its divisors is an integer number (2807940081).

Almost surely, 2^5615880161 is an apocalyptic number.

It is an amenable number.

5615880161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5615880161 is an equidigital number, since it uses as much as digits as its factorization.

5615880161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 5615880161 is about 74939.1764099393. The cubic root of 5615880161 is about 1777.4849977007.

The spelling of 5615880161 in words is "five billion, six hundred fifteen million, eight hundred eighty thousand, one hundred sixty-one".