12664103552 has 16 divisors (see below), whose sum is σ = 25229269050. Its totient is φ = 6332051712.

The previous prime is 12664103549. The next prime is 12664103587. The reversal of 12664103552 is 25530146621.

It can be written as a sum of positive squares in only one way, i.e., 12431358016 + 232745536 = 111496^2 + 15256^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49469027 + ... + 49469282.

Almost surely, 2^12664103552 is an apocalyptic number.

It is an amenable number.

12664103552 is a deficient number, since it is larger than the sum of its proper divisors (12565165498).

12664103552 is an frugal number, since it uses more digits than its factorization.

12664103552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98938323 (or 98938311 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12664103552 in words is "twelve billion, six hundred sixty-four million, one hundred three thousand, five hundred fifty-two".