16005550506 has 32 divisors (see below), whose sum is σ = 34974127296. Its totient is φ = 4842816000.

The previous prime is 16005550499. The next prime is 16005550513. The reversal of 16005550506 is 60505550061.

It is an interprime number because it is at equal distance from previous prime (16005550499) and next prime (16005550513).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 139815 + ... + 227066.

It is an arithmetic number, because the mean of its divisors is an integer number (1092941478).

Almost surely, 2^16005550506 is an apocalyptic number.

16005550506 is an abundant number, since it is smaller than the sum of its proper divisors (18968576790).

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

16005550506 is a wasteful number, since it uses less digits than its factorization.

16005550506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367558.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 16005550506 in words is "sixteen billion, five million, five hundred fifty thousand, five hundred six".