16465945 has 16 divisors (see below), whose sum is σ = 21022848. Its totient is φ = 12337920.

The previous prime is 16465921. The next prime is 16465949. The reversal of 16465945 is 54956461.

It is a happy number.

It is not a de Polignac number, because 16465945 - 2⁷ = 16465817 is a prime.

It is a super-2 number, since 2×16465945² = 542254689486050, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (129600) is a multiple of the sum of its prime divisors (960).

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 16465898 and 16465907.

It is not an unprimeable number, because it can be changed into a prime (16465949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25780 + ... + 26410.

It is an arithmetic number, because the mean of its divisors is an integer number (1313928).

Almost surely, 2^16465945 is an apocalyptic number.

It is an amenable number.

16465945 is a deficient number, since it is larger than the sum of its proper divisors (4556903).

16465945 is a wasteful number, since it uses less digits than its factorization.

16465945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 129600, while the sum is 40.

The square root of 16465945 is about 4057.8251564108. The cubic root of 16465945 is about 254.4069004579.

The spelling of 16465945 in words is "sixteen million, four hundred sixty-five thousand, nine hundred forty-five".