16145549361017 has 4 divisors (see below), whose sum is σ = 16995315116880. Its totient is φ = 15295783605156.

The previous prime is 16145549360999. The next prime is 16145549361037. The reversal of 16145549361017 is 71016394554161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16145549361017 - 2¹⁸ = 16145549098873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16145549361017.

It is not an unprimeable number, because it can be changed into a prime (16145549361037) 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, 424882877903 + ... + 424882877940.

It is an arithmetic number, because the mean of its divisors is an integer number (4248828779220).

Almost surely, 2^{16145549361017} is an apocalyptic number.

It is an amenable number.

16145549361017 is a deficient number, since it is larger than the sum of its proper divisors (849765755863).

16145549361017 is an equidigital number, since it uses as much as digits as its factorization.

16145549361017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849765755862.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 16145549361017 in words is "sixteen trillion, one hundred forty-five billion, five hundred forty-nine million, three hundred sixty-one thousand, seventeen".