16557079 has 16 divisors (see below), whose sum is σ = 21542400. Its totient is φ = 12339360.

The previous prime is 16557067. The next prime is 16557083. The reversal of 16557079 is 97075561.

It is not a de Polignac number, because 16557079 - 2¹¹ = 16555031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16557049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2904 + ... + 6445.

It is an arithmetic number, because the mean of its divisors is an integer number (1346400).

Almost surely, 2^16557079 is an apocalyptic number.

16557079 is a deficient number, since it is larger than the sum of its proper divisors (4985321).

16557079 is a wasteful number, since it uses less digits than its factorization.

16557079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 16557079 is about 4069.0390757524. The cubic root of 16557079 is about 254.8753921502.

It can be divided in two parts, 165570 and 79, that added together give a square (165649 = 407²).

The spelling of 16557079 in words is "sixteen million, five hundred fifty-seven thousand, seventy-nine".