16896734505 has 24 divisors (see below), whose sum is σ = 33471627072. Its totient is φ = 7724221344.

The previous prime is 16896734497. The next prime is 16896734507. The reversal of 16896734505 is 50543769861.

16896734505 is a `hidden beast` number, since 1 + 68 + 9 + 6 + 73 + 4 + 505 = 666.

It is not a de Polignac number, because 16896734505 - 2³ = 16896734497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16896734507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26819899 + ... + 26820528.

It is an arithmetic number, because the mean of its divisors is an integer number (1394651128).

Almost surely, 2^16896734505 is an apocalyptic number.

16896734505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16896734505 is a deficient number, since it is larger than the sum of its proper divisors (16574892567).

16896734505 is a wasteful number, since it uses less digits than its factorization.

16896734505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53640445 (or 53640442 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 16896734505 in words is "sixteen billion, eight hundred ninety-six million, seven hundred thirty-four thousand, five hundred five".