16506423304 has 32 divisors (see below), whose sum is σ = 35428308480. Its totient is φ = 7062701184.

The previous prime is 16506423301. The next prime is 16506423341. The reversal of 16506423304 is 40332460561.

It is a self number, because there is not a number n which added to its sum of digits gives 16506423304.

It is not an unprimeable number, because it can be changed into a prime (16506423301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204312 + ... + 273415.

It is an arithmetic number, because the mean of its divisors is an integer number (1107134640).

Almost surely, 2^16506423304 is an apocalyptic number.

16506423304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16506423304 is an abundant number, since it is smaller than the sum of its proper divisors (18921885176).

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

16506423304 is a wasteful number, since it uses less digits than its factorization.

16506423304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478357 (or 478353 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 16506423304 its reverse (40332460561), we get a palindrome (56838883865).

The spelling of 16506423304 in words is "sixteen billion, five hundred six million, four hundred twenty-three thousand, three hundred four".