16005424065 has 16 divisors (see below), whose sum is σ = 25653541056. Its totient is φ = 8521272000.

The previous prime is 16005424063. The next prime is 16005424067. The reversal of 16005424065 is 56042450061.

It is an interprime number because it is at equal distance from previous prime (16005424063) and next prime (16005424067).

It is not a de Polignac number, because 16005424065 - 2¹ = 16005424063 is a prime.

It is a super-2 number, since 2×16005424065² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16005424063) 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, 925786 + ... + 942915.

It is an arithmetic number, because the mean of its divisors is an integer number (1603346316).

Almost surely, 2^16005424065 is an apocalyptic number.

16005424065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16005424065 is a deficient number, since it is larger than the sum of its proper divisors (9648116991).

16005424065 is a wasteful number, since it uses less digits than its factorization.

16005424065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869280.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 16005424065 in words is "sixteen billion, five million, four hundred twenty-four thousand, sixty-five".