16021115205 has 8 divisors (see below), whose sum is σ = 25633784352. Its totient is φ = 8544594768.

The previous prime is 16021115189. The next prime is 16021115261. The reversal of 16021115205 is 50251112061.

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

It is not a de Polignac number, because 16021115205 - 2⁴ = 16021115189 is a prime.

It is a super-2 number, since 2×16021115205² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534037159 + ... + 534037188.

It is an arithmetic number, because the mean of its divisors is an integer number (3204223044).

Almost surely, 2^16021115205 is an apocalyptic number.

16021115205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16021115205 is a deficient number, since it is larger than the sum of its proper divisors (9612669147).

16021115205 is a wasteful number, since it uses less digits than its factorization.

16021115205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068074355.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 16021115205 its reverse (50251112061), we get a palindrome (66272227266).

The spelling of 16021115205 in words is "sixteen billion, twenty-one million, one hundred fifteen thousand, two hundred five".