13403054655821 has 16 divisors (see below), whose sum is σ = 13509225031680. Its totient is φ = 13297027618800.

The previous prime is 13403054655817. The next prime is 13403054655839. The reversal of 13403054655821 is 12855645030431.

It is not a de Polignac number, because 13403054655821 - 2² = 13403054655817 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 (13403054655811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140034336 + ... + 2140040598.

It is an arithmetic number, because the mean of its divisors is an integer number (844326564480).

Almost surely, 2^{13403054655821} is an apocalyptic number.

It is an amenable number.

13403054655821 is a deficient number, since it is larger than the sum of its proper divisors (106170375859).

13403054655821 is a wasteful number, since it uses less digits than its factorization.

13403054655821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15056.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 13403054655821 in words is "thirteen trillion, four hundred three billion, fifty-four million, six hundred fifty-five thousand, eight hundred twenty-one".