16310505555 has 24 divisors (see below), whose sum is σ = 28274671152. Its totient is φ = 8697973824.

The previous prime is 16310505553. The next prime is 16310505593. The reversal of 16310505555 is 55550501361.

It is not a de Polignac number, because 16310505555 - 2¹ = 16310505553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16310505553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605892 + ... + 632238.

It is an arithmetic number, because the mean of its divisors is an integer number (1178111298).

Almost surely, 2^16310505555 is an apocalyptic number.

16310505555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16310505555 is a deficient number, since it is larger than the sum of its proper divisors (11964165597).

16310505555 is a wasteful number, since it uses less digits than its factorization.

16310505555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40115 (or 40112 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 16310505555 in words is "sixteen billion, three hundred ten million, five hundred five thousand, five hundred fifty-five".