13404555511 has 4 divisors (see below), whose sum is σ = 13407499024. Its totient is φ = 13401612000.

The previous prime is 13404555509. The next prime is 13404555517. The reversal of 13404555511 is 11555540431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11555540431 = 19249 ⋅600319.

It is a cyclic number.

It is not a de Polignac number, because 13404555511 - 2¹ = 13404555509 is a prime.

It is a super-2 number, since 2×13404555511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404555517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464915 + ... + 1474036.

It is an arithmetic number, because the mean of its divisors is an integer number (3351874756).

Almost surely, 2^13404555511 is an apocalyptic number.

13404555511 is a deficient number, since it is larger than the sum of its proper divisors (2943513).

13404555511 is an equidigital number, since it uses as much as digits as its factorization.

13404555511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943512.

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 13404555511 in words is "thirteen billion, four hundred four million, five hundred fifty-five thousand, five hundred eleven".