16686703601 has 4 divisors (see below), whose sum is σ = 16734792432. Its totient is φ = 16638614772.

The previous prime is 16686703571. The next prime is 16686703633. The reversal of 16686703601 is 10630768661.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10630768661 = 17 ⋅625339333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16686703601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16686703661) 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, 24043895 + ... + 24044588.

It is an arithmetic number, because the mean of its divisors is an integer number (4183698108).

Almost surely, 2^16686703601 is an apocalyptic number.

It is an amenable number.

16686703601 is a deficient number, since it is larger than the sum of its proper divisors (48088831).

16686703601 is an equidigital number, since it uses as much as digits as its factorization.

16686703601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48088830.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 16686703601 in words is "sixteen billion, six hundred eighty-six million, seven hundred three thousand, six hundred one".