13552647864 has 128 divisors (see below), whose sum is σ = 41451264000. Its totient is φ = 3606159744.

The previous prime is 13552647853. The next prime is 13552647893. The reversal of 13552647864 is 46874625531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152347 + ... + 224309.

It is an arithmetic number, because the mean of its divisors is an integer number (323838000).

Almost surely, 2^13552647864 is an apocalyptic number.

13552647864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13552647864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20725632000).

13552647864 is an abundant number, since it is smaller than the sum of its proper divisors (27898616136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13552647864 is a wasteful number, since it uses less digits than its factorization.

13552647864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72057 (or 72053 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 51.

The spelling of 13552647864 in words is "thirteen billion, five hundred fifty-two million, six hundred forty-seven thousand, eight hundred sixty-four".