13155463551 has 4 divisors (see below), whose sum is σ = 17540618072. Its totient is φ = 8770309032.

The previous prime is 13155463547. The next prime is 13155463613. The reversal of 13155463551 is 15536455131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13155463551 - 2² = 13155463547 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 (13155463351) 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, 2192577256 + ... + 2192577261.

It is an arithmetic number, because the mean of its divisors is an integer number (4385154518).

Almost surely, 2^13155463551 is an apocalyptic number.

13155463551 is a deficient number, since it is larger than the sum of its proper divisors (4385154521).

13155463551 is an equidigital number, since it uses as much as digits as its factorization.

13155463551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385154520.

The product of its digits is 135000, while the sum is 39.

The spelling of 13155463551 in words is "thirteen billion, one hundred fifty-five million, four hundred sixty-three thousand, five hundred fifty-one".