14665272561 has 16 divisors (see below), whose sum is σ = 21937269120. Its totient is φ = 9681925680.

The previous prime is 14665272551. The next prime is 14665272577. The reversal of 14665272561 is 16527256641.

14665272561 is a `hidden beast` number, since 1 + 4 + 6 + 65 + 27 + 2 + 561 = 666.

It is not a de Polignac number, because 14665272561 - 2²¹ = 14663175409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14665272551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2633910 + ... + 2639471.

It is an arithmetic number, because the mean of its divisors is an integer number (1371079320).

Almost surely, 2^14665272561 is an apocalyptic number.

It is an amenable number.

14665272561 is a deficient number, since it is larger than the sum of its proper divisors (7271996559).

14665272561 is a wasteful number, since it uses less digits than its factorization.

14665272561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273493 (or 5273487 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 14665272561 in words is "fourteen billion, six hundred sixty-five million, two hundred seventy-two thousand, five hundred sixty-one".