14321663537 has 4 divisors (see below), whose sum is σ = 14324968560. Its totient is φ = 14318358516.

The previous prime is 14321663513. The next prime is 14321663539. The reversal of 14321663537 is 73536612341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73536612341 = 3347 ⋅21970903.

It is a cyclic number.

It is not a de Polignac number, because 14321663537 - 2¹⁶ = 14321598001 is a prime.

It is a super-2 number, since 2×14321663537² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14321663494 and 14321663503.

It is not an unprimeable number, because it can be changed into a prime (14321663539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1646003 + ... + 1654680.

It is an arithmetic number, because the mean of its divisors is an integer number (3581242140).

Almost surely, 2^14321663537 is an apocalyptic number.

It is an amenable number.

14321663537 is a deficient number, since it is larger than the sum of its proper divisors (3305023).

14321663537 is an equidigital number, since it uses as much as digits as its factorization.

14321663537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305022.

The product of its digits is 272160, while the sum is 41.

The spelling of 14321663537 in words is "fourteen billion, three hundred twenty-one million, six hundred sixty-three thousand, five hundred thirty-seven".