16515054243043 has 4 divisors (see below), whose sum is σ = 16515885543640. Its totient is φ = 16514222942448.

The previous prime is 16515054243013. The next prime is 16515054243053. The reversal of 16515054243043 is 34034245051561.

16515054243043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16515054243043 - 2¹³ = 16515054234851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16515054243013) 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, 415620498 + ... + 415660231.

It is an arithmetic number, because the mean of its divisors is an integer number (4128971385910).

Almost surely, 2^{16515054243043} is an apocalyptic number.

16515054243043 is a deficient number, since it is larger than the sum of its proper divisors (831300597).

16515054243043 is an equidigital number, since it uses as much as digits as its factorization.

16515054243043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831300596.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 16515054243043 in words is "sixteen trillion, five hundred fifteen billion, fifty-four million, two hundred forty-three thousand, forty-three".