6553493161 has 2 divisors, whose sum is σ = 6553493162. Its totient is φ = 6553493160.

The previous prime is 6553493153. The next prime is 6553493179. The reversal of 6553493161 is 1613943556.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4312417561 + 2241075600 = 65669^2 + 47340^2 .

It is a cyclic number.

It is not a de Polignac number, because 6553493161 - 2³ = 6553493153 is a prime.

It is a super-2 number, since 2×6553493161² = 85896545222547543842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6553493101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276746580 + 3276746581.

It is an arithmetic number, because the mean of its divisors is an integer number (3276746581).

Almost surely, 2^6553493161 is an apocalyptic number.

It is an amenable number.

6553493161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553493161 is an equidigital number, since it uses as much as digits as its factorization.

6553493161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 291600, while the sum is 43.

The square root of 6553493161 is about 80953.6482253888. The cubic root of 6553493161 is about 1871.3611831584.

The spelling of 6553493161 in words is "six billion, five hundred fifty-three million, four hundred ninety-three thousand, one hundred sixty-one".