13111405655 has 16 divisors (see below), whose sum is σ = 16168029024. Its totient is φ = 10199882880.

The previous prime is 13111405631. The next prime is 13111405679. The reversal of 13111405655 is 55650411131.

It is an interprime number because it is at equal distance from previous prime (13111405631) and next prime (13111405679).

It is not a de Polignac number, because 13111405655 - 2¹⁶ = 13111340119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325244 + ... + 363326.

It is an arithmetic number, because the mean of its divisors is an integer number (1010501814).

Almost surely, 2^13111405655 is an apocalyptic number.

13111405655 is a deficient number, since it is larger than the sum of its proper divisors (3056623369).

13111405655 is a wasteful number, since it uses less digits than its factorization.

13111405655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39986.

The product of its (nonzero) digits is 9000, while the sum is 32.

Adding to 13111405655 its reverse (55650411131), we get a palindrome (68761816786).

The spelling of 13111405655 in words is "thirteen billion, one hundred eleven million, four hundred five thousand, six hundred fifty-five".