16866539234496 has 84 divisors (see below), whose sum is σ = 55251302148432. Its totient is φ = 4819011208704.

The previous prime is 16866539234483. The next prime is 16866539234551. The reversal of 16866539234496 is 69443293566861.

16866539234496 is a `hidden beast` number, since 1 + 6 + 8 + 66 + 53 + 9 + 23 + 4 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2091580695 + ... + 2091588758.

Almost surely, 2^{16866539234496} is an apocalyptic number.

16866539234496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16866539234496 is an abundant number, since it is smaller than the sum of its proper divisors (38384762913936).

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

16866539234496 is a wasteful number, since it uses less digits than its factorization.

16866539234496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4183169478 (or 4183169465 counting only the distinct ones).

The product of its digits is 1209323520, while the sum is 72.

The spelling of 16866539234496 in words is "sixteen trillion, eight hundred sixty-six billion, five hundred thirty-nine million, two hundred thirty-four thousand, four hundred ninety-six".