16000615565 has 16 divisors (see below), whose sum is σ = 20949701760. Its totient is φ = 11634899520.

The previous prime is 16000615537. The next prime is 16000615567. The reversal of 16000615565 is 56551600061.

16000615565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16000615565 - 2¹² = 16000611469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16000615567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373427 + ... + 414063.

It is an arithmetic number, because the mean of its divisors is an integer number (1309356360).

Almost surely, 2^16000615565 is an apocalyptic number.

It is an amenable number.

16000615565 is a deficient number, since it is larger than the sum of its proper divisors (4949086195).

16000615565 is a wasteful number, since it uses less digits than its factorization.

16000615565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47812.

The product of its (nonzero) digits is 27000, while the sum is 35.

It can be divided in two parts, 160006 and 15565, that added together give a palindrome (175571).

The spelling of 16000615565 in words is "sixteen billion, six hundred fifteen thousand, five hundred sixty-five".