16505434360 has 32 divisors (see below), whose sum is σ = 37281753360. Its totient is φ = 6576480256.

The previous prime is 16505434357. The next prime is 16505434367. The reversal of 16505434360 is 6343450561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16505434367) 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, 792514 + ... + 813073.

Almost surely, 2^16505434360 is an apocalyptic number.

16505434360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16505434360 is an abundant number, since it is smaller than the sum of its proper divisors (20776319000).

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

16505434360 is a wasteful number, since it uses less digits than its factorization.

16505434360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605855 (or 1605851 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 16505434360 in words is "sixteen billion, five hundred five million, four hundred thirty-four thousand, three hundred sixty".