13530553984 has 16 divisors (see below), whose sum is σ = 26955400770. Its totient is φ = 6765276928.

The previous prime is 13530553979. The next prime is 13530554017. The reversal of 13530553984 is 48935503531.

It can be written as a sum of positive squares in only one way, i.e., 8471361600 + 5059192384 = 92040^2 + 71128^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×13530553984² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52853599 + ... + 52853854.

Almost surely, 2^13530553984 is an apocalyptic number.

It is an amenable number.

13530553984 is a deficient number, since it is larger than the sum of its proper divisors (13424846786).

13530553984 is an equidigital number, since it uses as much as digits as its factorization.

13530553984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105707467 (or 105707455 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 13530553984 in words is "thirteen billion, five hundred thirty million, five hundred fifty-three thousand, nine hundred eighty-four".