13154721755 has 16 divisors (see below), whose sum is σ = 18662857920. Its totient is φ = 8709332352.

The previous prime is 13154721751. The next prime is 13154721757. The reversal of 13154721755 is 55712745131.

13154721755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13154721755 - 2² = 13154721751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13154721751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6479144 + ... + 6481173.

It is an arithmetic number, because the mean of its divisors is an integer number (1166428620).

Almost surely, 2^13154721755 is an apocalyptic number.

13154721755 is a deficient number, since it is larger than the sum of its proper divisors (5508136165).

13154721755 is a wasteful number, since it uses less digits than its factorization.

13154721755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960358.

The product of its digits is 147000, while the sum is 41.

The spelling of 13154721755 in words is "thirteen billion, one hundred fifty-four million, seven hundred twenty-one thousand, seven hundred fifty-five".