16545054172013 has 4 divisors (see below), whose sum is σ = 16552103622240. Its totient is φ = 16538004721788.

The previous prime is 16545054172007. The next prime is 16545054172021. The reversal of 16545054172013 is 31027145054561.

It is a happy number.

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 16545054172013 - 2¹⁰ = 16545054170989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545054172063) 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, 3524721593 + ... + 3524726286.

It is an arithmetic number, because the mean of its divisors is an integer number (4138025905560).

Almost surely, 2^{16545054172013} is an apocalyptic number.

It is an amenable number.

16545054172013 is a deficient number, since it is larger than the sum of its proper divisors (7049450227).

16545054172013 is an equidigital number, since it uses as much as digits as its factorization.

16545054172013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049450226.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 16545054172013 in words is "sixteen trillion, five hundred forty-five billion, fifty-four million, one hundred seventy-two thousand, thirteen".