16403396327 has 16 divisors (see below), whose sum is σ = 17086021632. Its totient is φ = 15730666560.

The previous prime is 16403396299. The next prime is 16403396333. The reversal of 16403396327 is 72369330461.

It is a cyclic number.

It is not a de Polignac number, because 16403396327 - 2⁶ = 16403396263 is a prime.

It is a super-2 number, since 2×16403396327² (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 (16403396227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4277603 + ... + 4281435.

It is an arithmetic number, because the mean of its divisors is an integer number (1067876352).

Almost surely, 2^16403396327 is an apocalyptic number.

16403396327 is a deficient number, since it is larger than the sum of its proper divisors (682625305).

16403396327 is a wasteful number, since it uses less digits than its factorization.

16403396327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078.

The product of its (nonzero) digits is 489888, while the sum is 44.

The spelling of 16403396327 in words is "sixteen billion, four hundred three million, three hundred ninety-six thousand, three hundred twenty-seven".