16554534723 has 12 divisors (see below), whose sum is σ = 23926506240. Its totient is φ = 11029710096.

The previous prime is 16554534713. The next prime is 16554534739. The reversal of 16554534723 is 32743545561.

16554534723 is a `hidden beast` number, since 1 + 6 + 5 + 545 + 34 + 72 + 3 = 666.

It is not a de Polignac number, because 16554534723 - 2⁴ = 16554534707 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16554534713) 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 11 ways as a sum of consecutive naturals, for example, 538068 + ... + 568001.

It is an arithmetic number, because the mean of its divisors is an integer number (1993875520).

Almost surely, 2^16554534723 is an apocalyptic number.

16554534723 is a deficient number, since it is larger than the sum of its proper divisors (7371971517).

16554534723 is a wasteful number, since it uses less digits than its factorization.

16554534723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107738 (or 1107735 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The spelling of 16554534723 in words is "sixteen billion, five hundred fifty-four million, five hundred thirty-four thousand, seven hundred twenty-three".