16543040766 has 32 divisors (see below), whose sum is σ = 39456695808. Its totient is φ = 4521079200.

The previous prime is 16543040753. The next prime is 16543040803. The reversal of 16543040766 is 66704034561.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 8561685 + ... + 8563616.

It is an arithmetic number, because the mean of its divisors is an integer number (1233021744).

Almost surely, 2^16543040766 is an apocalyptic number.

16543040766 is an abundant number, since it is smaller than the sum of its proper divisors (22913655042).

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

16543040766 is a wasteful number, since it uses less digits than its factorization.

16543040766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17125336.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 16543040766 in words is "sixteen billion, five hundred forty-three million, forty thousand, seven hundred sixty-six".