6553623771403 has 2 divisors, whose sum is σ = 6553623771404. Its totient is φ = 6553623771402.

The previous prime is 6553623771337. The next prime is 6553623771433. The reversal of 6553623771403 is 3041773263556.

6553623771403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6553623771403 - 2¹⁷ = 6553623640331 is a prime.

It is not a weakly prime, because it can be changed into another prime (6553623771433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3276811885701 + 3276811885702.

It is an arithmetic number, because the mean of its divisors is an integer number (3276811885702).

Almost surely, 2^{6553623771403} is an apocalyptic number.

6553623771403 is a deficient number, since it is larger than the sum of its proper divisors (1).

6553623771403 is an equidigital number, since it uses as much as digits as its factorization.

6553623771403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 52.

The spelling of 6553623771403 in words is "six trillion, five hundred fifty-three billion, six hundred twenty-three million, seven hundred seventy-one thousand, four hundred three".