16311286605 has 16 divisors (see below), whose sum is σ = 26113754304. Its totient is φ = 8694120960.

The previous prime is 16311286603. The next prime is 16311286627. The reversal of 16311286605 is 50668211361.

It is not a de Polignac number, because 16311286605 - 2¹ = 16311286603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16311286603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301156 + ... + 351165.

It is an arithmetic number, because the mean of its divisors is an integer number (1632109644).

Almost surely, 2^16311286605 is an apocalyptic number.

16311286605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16311286605 is a deficient number, since it is larger than the sum of its proper divisors (9802467699).

16311286605 is a wasteful number, since it uses less digits than its factorization.

16311286605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653996.

The product of its (nonzero) digits is 51840, while the sum is 39.

Adding to 16311286605 its reverse (50668211361), we get a palindrome (66979497966).

The spelling of 16311286605 in words is "sixteen billion, three hundred eleven million, two hundred eighty-six thousand, six hundred five".