14916347557 has 4 divisors (see below), whose sum is σ = 14932267756. Its totient is φ = 14900427360.

The previous prime is 14916347549. The next prime is 14916347561. The reversal of 14916347557 is 75574361941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 505305441 + 14411042116 = 22479^2 + 120046^2 .

It is a cyclic number.

It is not a de Polignac number, because 14916347557 - 2³ = 14916347549 is a prime.

It is the 122133-rd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14916357557) by changing a digit.

It is a nontrivial repunit in base 122132.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7958694 + ... + 7960567.

It is an arithmetic number, because the mean of its divisors is an integer number (3733066939).

Almost surely, 2^14916347557 is an apocalyptic number.

It is an amenable number.

14916347557 is a deficient number, since it is larger than the sum of its proper divisors (15920199).

14916347557 is an equidigital number, since it uses as much as digits as its factorization.

14916347557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920198.

The product of its digits is 3175200, while the sum is 52.

The spelling of 14916347557 in words is "fourteen billion, nine hundred sixteen million, three hundred forty-seven thousand, five hundred fifty-seven".