14661672553 has 4 divisors (see below), whose sum is σ = 15994551888. Its totient is φ = 13328793220.

The previous prime is 14661672541. The next prime is 14661672581. The reversal of 14661672553 is 35527616641.

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.

It is a cyclic number.

It is not a de Polignac number, because 14661672553 - 2¹³ = 14661664361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14661672853) 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, 666439651 + ... + 666439672.

It is an arithmetic number, because the mean of its divisors is an integer number (3998637972).

Almost surely, 2^14661672553 is an apocalyptic number.

It is an amenable number.

14661672553 is a deficient number, since it is larger than the sum of its proper divisors (1332879335).

14661672553 is a wasteful number, since it uses less digits than its factorization.

14661672553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332879334.

The product of its digits is 907200, while the sum is 46.

The spelling of 14661672553 in words is "fourteen billion, six hundred sixty-one million, six hundred seventy-two thousand, five hundred fifty-three".