16549717157 has 16 divisors (see below), whose sum is σ = 16752153600. Its totient is φ = 16349040000.

The previous prime is 16549717139. The next prime is 16549717159. The reversal of 16549717157 is 75171794561.

16549717157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16549717157 - 2¹⁶ = 16549651621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16549717099 and 16549717108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16549717159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22036532 + ... + 22037282.

It is an arithmetic number, because the mean of its divisors is an integer number (1047009600).

Almost surely, 2^16549717157 is an apocalyptic number.

It is an amenable number.

16549717157 is a deficient number, since it is larger than the sum of its proper divisors (202436443).

16549717157 is a wasteful number, since it uses less digits than its factorization.

16549717157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its digits is 1852200, while the sum is 53.

The spelling of 16549717157 in words is "sixteen billion, five hundred forty-nine million, seven hundred seventeen thousand, one hundred fifty-seven".