16177038049 has 4 divisors (see below), whose sum is σ = 16482265236. Its totient is φ = 15871810864.

The previous prime is 16177038029. The next prime is 16177038067. The reversal of 16177038049 is 94083077161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14773187025 + 1403851024 = 121545^2 + 37468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16177038049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16177038029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152613514 + ... + 152613619.

It is an arithmetic number, because the mean of its divisors is an integer number (4120566309).

Almost surely, 2^16177038049 is an apocalyptic number.

It is an amenable number.

16177038049 is a deficient number, since it is larger than the sum of its proper divisors (305227187).

16177038049 is an equidigital number, since it uses as much as digits as its factorization.

16177038049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305227186.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 16177038049 in words is "sixteen billion, one hundred seventy-seven million, thirty-eight thousand, forty-nine".