16187671265 has 8 divisors (see below), whose sum is σ = 19425961320. Its totient is φ = 12949633152.

The previous prime is 16187671259. The next prime is 16187671361. The reversal of 16187671265 is 56217678161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3293841664 + 12893829601 = 57392^2 + 113551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16187671265 - 2¹² = 16187667169 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134891 + ... + 224879.

It is an arithmetic number, because the mean of its divisors is an integer number (2428245165).

Almost surely, 2^16187671265 is an apocalyptic number.

It is an amenable number.

16187671265 is a deficient number, since it is larger than the sum of its proper divisors (3238290055).

16187671265 is an equidigital number, since it uses as much as digits as its factorization.

16187671265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125971.

The product of its digits is 846720, while the sum is 50.

The spelling of 16187671265 in words is "sixteen billion, one hundred eighty-seven million, six hundred seventy-one thousand, two hundred sixty-five".