16643840153713 has 8 divisors (see below), whose sum is σ = 16678808689320. Its totient is φ = 16608891680640.

The previous prime is 16643840153687. The next prime is 16643840153791. The reversal of 16643840153713 is 31735104834661.

It can be written as a sum of positive squares in 4 ways, for example, as 11096840140864 + 5547000012849 = 3331192^2 + 2355207^2 .

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 16643840153713 - 2¹³ = 16643840145521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16643841153713) 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, 3354118 + ... + 6673663.

It is an arithmetic number, because the mean of its divisors is an integer number (2084851086165).

Almost surely, 2^{16643840153713} is an apocalyptic number.

It is an amenable number.

16643840153713 is a deficient number, since it is larger than the sum of its proper divisors (34968535607).

16643840153713 is a wasteful number, since it uses less digits than its factorization.

16643840153713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031267.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 16643840153713 in words is "sixteen trillion, six hundred forty-three billion, eight hundred forty million, one hundred fifty-three thousand, seven hundred thirteen".