16196639 has 6 divisors (see below), whose sum is σ = 16647624. Its totient is φ = 15757560.

The previous prime is 16196627. The next prime is 16196651. The reversal of 16196639 is 93669161.

It is an interprime number because it is at equal distance from previous prime (16196627) and next prime (16196651).

It is not a de Polignac number, because 16196639 - 2¹² = 16192543 is a prime.

It is a super-2 number, since 2×16196639² = 524662229792642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16196596 and 16196605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16196689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4547 + ... + 7284.

It is an arithmetic number, because the mean of its divisors is an integer number (2774604).

Almost surely, 2^16196639 is an apocalyptic number.

16196639 is a deficient number, since it is larger than the sum of its proper divisors (450985).

16196639 is an equidigital number, since it uses as much as digits as its factorization.

16196639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11905 (or 11868 counting only the distinct ones).

The product of its digits is 52488, while the sum is 41.

The square root of 16196639 is about 4024.5048142598. The cubic root of 16196639 is about 253.0122997556.

The spelling of 16196639 in words is "sixteen million, one hundred ninety-six thousand, six hundred thirty-nine".