16506243340013 has 8 divisors (see below), whose sum is σ = 19973941520832. Its totient is φ = 13315961013696.

The previous prime is 16506243340007. The next prime is 16506243340019. The reversal of 16506243340013 is 31004334260561.

16506243340013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16506243340007) and next prime (16506243340019).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16506243340013 - 2⁸ = 16506243339757 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 (16506243340019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69353963495 + ... + 69353963732.

It is an arithmetic number, because the mean of its divisors is an integer number (2496742690104).

Almost surely, 2^{16506243340013} is an apocalyptic number.

It is an amenable number.

16506243340013 is a deficient number, since it is larger than the sum of its proper divisors (3467698180819).

16506243340013 is a wasteful number, since it uses less digits than its factorization.

16506243340013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138707927251.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 16506243340013 in words is "sixteen trillion, five hundred six billion, two hundred forty-three million, three hundred forty thousand, thirteen".