14521442665 has 16 divisors (see below), whose sum is σ = 17553004560. Its totient is φ = 11532533760.

The previous prime is 14521442647. The next prime is 14521442681. The reversal of 14521442665 is 56624412541.

It can be written as a sum of positive squares in 8 ways, for example, as 32024281 + 14489418384 = 5659^2 + 120372^2 .

It is not a de Polignac number, because 14521442665 - 2⁹ = 14521442153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508281 + ... + 536089.

It is an arithmetic number, because the mean of its divisors is an integer number (1097062785).

Almost surely, 2^14521442665 is an apocalyptic number.

It is an amenable number.

14521442665 is a deficient number, since it is larger than the sum of its proper divisors (3031561895).

14521442665 is a wasteful number, since it uses less digits than its factorization.

14521442665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28572.

The product of its digits is 230400, while the sum is 40.

The spelling of 14521442665 in words is "fourteen billion, five hundred twenty-one million, four hundred forty-two thousand, six hundred sixty-five".