16485511811 has 8 divisors (see below), whose sum is σ = 16614355440. Its totient is φ = 16356791808.

The previous prime is 16485511787. The next prime is 16485511841. The reversal of 16485511811 is 11811558461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16485511811 - 2¹⁸ = 16485249667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16485511841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 246500 + ... + 306158.

It is an arithmetic number, because the mean of its divisors is an integer number (2076794430).

Almost surely, 2^16485511811 is an apocalyptic number.

16485511811 is a deficient number, since it is larger than the sum of its proper divisors (128843629).

16485511811 is a wasteful number, since it uses less digits than its factorization.

16485511811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61813.

The product of its digits is 38400, while the sum is 41.

The spelling of 16485511811 in words is "sixteen billion, four hundred eighty-five million, five hundred eleven thousand, eight hundred eleven".