551161165193 has 2 divisors, whose sum is σ = 551161165194. Its totient is φ = 551161165192.

The previous prime is 551161165141. The next prime is 551161165249. The reversal of 551161165193 is 391561161155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538210042384 + 12951122809 = 733628^2 + 113803^2 .

It is a cyclic number.

It is not a de Polignac number, because 551161165193 - 2²⁴ = 551144387977 is a prime.

It is not a weakly prime, because it can be changed into another prime (551161165103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275580582596 + 275580582597.

It is an arithmetic number, because the mean of its divisors is an integer number (275580582597).

Almost surely, 2^551161165193 is an apocalyptic number.

It is an amenable number.

551161165193 is a deficient number, since it is larger than the sum of its proper divisors (1).

551161165193 is an equidigital number, since it uses as much as digits as its factorization.

551161165193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 44.

The spelling of 551161165193 in words is "five hundred fifty-one billion, one hundred sixty-one million, one hundred sixty-five thousand, one hundred ninety-three".