16458187313 has 4 divisors (see below), whose sum is σ = 16470839028. Its totient is φ = 16445535600.

The previous prime is 16458187307. The next prime is 16458187321. The reversal of 16458187313 is 31378185461.

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 1090122289 + 15368065024 = 33017^2 + 123968^2 .

It is a cyclic number.

It is not a de Polignac number, because 16458187313 - 2¹⁴ = 16458170929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16458187393) 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, 6323906 + ... + 6326507.

It is an arithmetic number, because the mean of its divisors is an integer number (4117709757).

Almost surely, 2^16458187313 is an apocalyptic number.

It is an amenable number.

16458187313 is a deficient number, since it is larger than the sum of its proper divisors (12651715).

16458187313 is a wasteful number, since it uses less digits than its factorization.

16458187313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12651714.

The product of its digits is 483840, while the sum is 47.

The spelling of 16458187313 in words is "sixteen billion, four hundred fifty-eight million, one hundred eighty-seven thousand, three hundred thirteen".