13666016504 has 48 divisors (see below), whose sum is σ = 30369702600. Its totient is φ = 5746348608.

The previous prime is 13666016501. The next prime is 13666016569. The reversal of 13666016504 is 40561066631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13666016501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308114 + ... + 349665.

Almost surely, 2^13666016504 is an apocalyptic number.

13666016504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13666016504 is an abundant number, since it is smaller than the sum of its proper divisors (16703686096).

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

13666016504 is a wasteful number, since it uses less digits than its factorization.

13666016504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657852 (or 657841 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

It can be divided in two parts, 13666016 and 504, that multiplied together give a square (6887672064 = 82992²).

The spelling of 13666016504 in words is "thirteen billion, six hundred sixty-six million, sixteen thousand, five hundred four".