16212117007 has 8 divisors (see below), whose sum is σ = 16310812896. Its totient is φ = 16113478752.

The previous prime is 16212116989. The next prime is 16212117029. The reversal of 16212117007 is 70071121261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16212117007 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 (16212117037) 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, 639253 + ... + 664129.

It is an arithmetic number, because the mean of its divisors is an integer number (2038851612).

Almost surely, 2^16212117007 is an apocalyptic number.

16212117007 is a deficient number, since it is larger than the sum of its proper divisors (98695889).

16212117007 is a wasteful number, since it uses less digits than its factorization.

16212117007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28817.

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 16212117007 its reverse (70071121261), we get a palindrome (86283238268).

The spelling of 16212117007 in words is "sixteen billion, two hundred twelve million, one hundred seventeen thousand, seven".