16506444396 has 48 divisors (see below), whose sum is σ = 42180768000. Its totient is φ = 4992820032.

The previous prime is 16506444379. The next prime is 16506444413. The reversal of 16506444396 is 69344460561.

It is an interprime number because it is at equal distance from previous prime (16506444379) and next prime (16506444413).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887496 + ... + 905903.

It is an arithmetic number, because the mean of its divisors is an integer number (878766000).

Almost surely, 2^16506444396 is an apocalyptic number.

It is an amenable number.

16506444396 is an abundant number, since it is smaller than the sum of its proper divisors (25674323604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16506444396 is a wasteful number, since it uses less digits than its factorization.

16506444396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793478 (or 1793476 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 16506444396 in words is "sixteen billion, five hundred six million, four hundred forty-four thousand, three hundred ninety-six".