13155454651511 has 4 divisors (see below), whose sum is σ = 13155462880632. Its totient is φ = 13155446422392.

The previous prime is 13155454651433. The next prime is 13155454651541. The reversal of 13155454651511 is 11515645455131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13155454651511 - 2⁴² = 8757408140407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13155454651541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856796 + ... + 5200481.

It is an arithmetic number, because the mean of its divisors is an integer number (3288865720158).

Almost surely, 2^{13155454651511} is an apocalyptic number.

13155454651511 is a deficient number, since it is larger than the sum of its proper divisors (8229121).

13155454651511 is an equidigital number, since it uses as much as digits as its factorization.

13155454651511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229120.

The product of its digits is 900000, while the sum is 47.

The spelling of 13155454651511 in words is "thirteen trillion, one hundred fifty-five billion, four hundred fifty-four million, six hundred fifty-one thousand, five hundred eleven".