14143636520 has 32 divisors (see below), whose sum is σ = 34271120520. Its totient is φ = 5222265600.

The previous prime is 14143636501. The next prime is 14143636531. The reversal of 14143636520 is 2563634141.

It can be written as a sum of positive squares in 4 ways, for example, as 12077570404 + 2066066116 = 109898^2 + 45454^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13599131 + ... + 13600170.

Almost surely, 2^14143636520 is an apocalyptic number.

14143636520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14143636520 is an abundant number, since it is smaller than the sum of its proper divisors (20127484000).

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

14143636520 is a wasteful number, since it uses less digits than its factorization.

14143636520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27199325 (or 27199321 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 14143636520 in words is "fourteen billion, one hundred forty-three million, six hundred thirty-six thousand, five hundred twenty".