16485566454 has 48 divisors (see below), whose sum is σ = 40846411008. Its totient is φ = 4707276336.

The previous prime is 16485566453. The next prime is 16485566473. The reversal of 16485566454 is 45466558461.

16485566454 is a `hidden beast` number, since 1 + 6 + 48 + 556 + 6 + 45 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16485566454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16485566453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170799 + ... + 249285.

It is an arithmetic number, because the mean of its divisors is an integer number (850966896).

Almost surely, 2^16485566454 is an apocalyptic number.

16485566454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16485566454 is an abundant number, since it is smaller than the sum of its proper divisors (24360844554).

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

16485566454 is a wasteful number, since it uses less digits than its factorization.

16485566454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80169 (or 80166 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 16485566454 in words is "sixteen billion, four hundred eighty-five million, five hundred sixty-six thousand, four hundred fifty-four".