16678737013 has 4 divisors (see below), whose sum is σ = 16742154528. Its totient is φ = 16615319500.

The previous prime is 16678737011. The next prime is 16678737041. The reversal of 16678737013 is 31073787661.

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 16678737013 - 2¹ = 16678737011 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 (16678737011) 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, 31708363 + ... + 31708888.

It is an arithmetic number, because the mean of its divisors is an integer number (4185538632).

Almost surely, 2^16678737013 is an apocalyptic number.

It is an amenable number.

16678737013 is a deficient number, since it is larger than the sum of its proper divisors (63417515).

16678737013 is an equidigital number, since it uses as much as digits as its factorization.

16678737013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63417514.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 16678737013 in words is "sixteen billion, six hundred seventy-eight million, seven hundred thirty-seven thousand, thirteen".