13655556501 has 16 divisors (see below), whose sum is σ = 18416865600. Its totient is φ = 8999198208.

The previous prime is 13655556487. The next prime is 13655556503. The reversal of 13655556501 is 10565555631.

It is a happy number.

It is not a de Polignac number, because 13655556501 - 2⁵ = 13655556469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13655556503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222655 + ... + 277283.

It is an arithmetic number, because the mean of its divisors is an integer number (1151054100).

Almost surely, 2^13655556501 is an apocalyptic number.

It is an amenable number.

13655556501 is a deficient number, since it is larger than the sum of its proper divisors (4761309099).

13655556501 is an equidigital number, since it uses as much as digits as its factorization.

13655556501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55588.

The product of its (nonzero) digits is 337500, while the sum is 42.

The spelling of 13655556501 in words is "thirteen billion, six hundred fifty-five million, five hundred fifty-six thousand, five hundred one".