5161661059 has 2 divisors, whose sum is σ = 5161661060. Its totient is φ = 5161661058.

The previous prime is 5161661033. The next prime is 5161661111. The reversal of 5161661059 is 9501661615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5161661059 - 2²³ = 5153272451 is a prime.

It is not a weakly prime, because it can be changed into another prime (5161661009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580830529 + 2580830530.

It is an arithmetic number, because the mean of its divisors is an integer number (2580830530).

Almost surely, 2^5161661059 is an apocalyptic number.

5161661059 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161661059 is an equidigital number, since it uses as much as digits as its factorization.

5161661059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 5161661059 is about 71844.7009806569. The cubic root of 5161661059 is about 1728.2099228199.

The spelling of 5161661059 in words is "five billion, one hundred sixty-one million, six hundred sixty-one thousand, fifty-nine".