16115065155 has 64 divisors (see below), whose sum is σ = 32793569280. Its totient is φ = 7355221632.

The previous prime is 16115065133. The next prime is 16115065157. The reversal of 16115065155 is 55156051161.

It is a happy number.

It is not a de Polignac number, because 16115065155 - 2¹⁵ = 16115032387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16115065157) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 598237 + ... + 624593.

It is an arithmetic number, because the mean of its divisors is an integer number (512399520).

Almost surely, 2^16115065155 is an apocalyptic number.

16115065155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16115065155 is an abundant number, since it is smaller than the sum of its proper divisors (16678504125).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16115065155 is a wasteful number, since it uses less digits than its factorization.

16115065155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27025 (or 27019 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 16115065155 in words is "sixteen billion, one hundred fifteen million, sixty-five thousand, one hundred fifty-five".