16557542703 has 48 divisors (see below), whose sum is σ = 27331799040. Its totient is φ = 9580963392.

The previous prime is 16557542699. The next prime is 16557542713. The reversal of 16557542703 is 30724575561.

It is a happy number.

16557542703 is a `hidden beast` number, since 1 + 6 + 5 + 575 + 4 + 2 + 70 + 3 = 666.

It is not a de Polignac number, because 16557542703 - 2² = 16557542699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16557542713) 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 47 ways as a sum of consecutive naturals, for example, 106626 + ... + 210912.

It is an arithmetic number, because the mean of its divisors is an integer number (569412480).

Almost surely, 2^16557542703 is an apocalyptic number.

16557542703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16557542703 is a deficient number, since it is larger than the sum of its proper divisors (10774256337).

16557542703 is a wasteful number, since it uses less digits than its factorization.

16557542703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104388 (or 104385 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 45.

The spelling of 16557542703 in words is "sixteen billion, five hundred fifty-seven million, five hundred forty-two thousand, seven hundred three".