16000000001 has 4 divisors (see below), whose sum is σ = 16001223600. Its totient is φ = 15998776404.

The previous prime is 15999999991. The next prime is 16000000039. The reversal of 16000000001 is 10000000061.

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 16000000001 - 2¹⁸ = 15999737857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16000000091) 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, 591971 + ... + 618408.

It is an arithmetic number, because the mean of its divisors is an integer number (4000305900).

Almost surely, 2^16000000001 is an apocalyptic number.

It is an amenable number.

16000000001 is a deficient number, since it is larger than the sum of its proper divisors (1223599).

16000000001 is a wasteful number, since it uses less digits than its factorization.

16000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223598.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 16000000001 its reverse (10000000061), we get a palindrome (26000000062).

The spelling of 16000000001 in words is "sixteen billion, one", and thus it is an aban number and an uban number.