14145681536 has 64 divisors (see below), whose sum is σ = 33607025280. Its totient is φ = 5798842368.

The previous prime is 14145681533. The next prime is 14145681541. The reversal of 14145681536 is 63518654141.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×14145681536² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14145681533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322601 + ... + 363816.

It is an arithmetic number, because the mean of its divisors is an integer number (525109770).

Almost surely, 2^14145681536 is an apocalyptic number.

14145681536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

14145681536 is an abundant number, since it is smaller than the sum of its proper divisors (19461343744).

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

14145681536 is an equidigital number, since it uses as much as digits as its factorization.

14145681536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686461 (or 686449 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The spelling of 14145681536 in words is "fourteen billion, one hundred forty-five million, six hundred eighty-one thousand, five hundred thirty-six".