16266436506 has 24 divisors (see below), whose sum is σ = 35261310240. Its totient is φ = 5419474056.

The previous prime is 16266436453. The next prime is 16266436523. The reversal of 16266436506 is 60563466261.

16266436506 is a `hidden beast` number, since 162 + 6 + 6 + 436 + 50 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184900 + ... + 258303.

It is an arithmetic number, because the mean of its divisors is an integer number (1469221260).

Almost surely, 2^16266436506 is an apocalyptic number.

16266436506 is an abundant number, since it is smaller than the sum of its proper divisors (18994873734).

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

16266436506 is a wasteful number, since it uses less digits than its factorization.

16266436506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445250 (or 445247 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 16266436506 in words is "sixteen billion, two hundred sixty-six million, four hundred thirty-six thousand, five hundred six".