16126646327 has 4 divisors (see below), whose sum is σ = 17592705096. Its totient is φ = 14660587560.

The previous prime is 16126646323. The next prime is 16126646377. The reversal of 16126646327 is 72364662161.

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

It is a cyclic number.

It is not a de Polignac number, because 16126646327 - 2² = 16126646323 is a prime.

It is a super-2 number, since 2×16126646327² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16126646323) 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, 733029368 + ... + 733029389.

It is an arithmetic number, because the mean of its divisors is an integer number (4398176274).

Almost surely, 2^16126646327 is an apocalyptic number.

16126646327 is a deficient number, since it is larger than the sum of its proper divisors (1466058769).

16126646327 is a wasteful number, since it uses less digits than its factorization.

16126646327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466058768.

The product of its digits is 435456, while the sum is 44.

The spelling of 16126646327 in words is "sixteen billion, one hundred twenty-six million, six hundred forty-six thousand, three hundred twenty-seven".