16321968901 has 8 divisors (see below), whose sum is σ = 18863271360. Its totient is φ = 13833064608.

The previous prime is 16321968833. The next prime is 16321968907. The reversal of 16321968901 is 10986912361.

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 16321968901 - 2¹³ = 16321960709 is a prime.

It is a super-2 number, since 2×16321968901² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16321968907) 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, 13098871 + ... + 13100116.

It is an arithmetic number, because the mean of its divisors is an integer number (2357908920).

Almost surely, 2^16321968901 is an apocalyptic number.

It is an amenable number.

16321968901 is a deficient number, since it is larger than the sum of its proper divisors (2541302459).

16321968901 is an equidigital number, since it uses as much as digits as its factorization.

16321968901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26199083.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 16321968901 in words is "sixteen billion, three hundred twenty-one million, nine hundred sixty-eight thousand, nine hundred one".