15996465 has 24 divisors (see below), whose sum is σ = 28624128. Its totient is φ = 8255520.

The previous prime is 15996433. The next prime is 15996467. The reversal of 15996465 is 56469951.

It is a happy number.

It is not a de Polignac number, because 15996465 - 2⁵ = 15996433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 15996465.

It is not an unprimeable number, because it can be changed into a prime (15996467) 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 23 ways as a sum of consecutive naturals, for example, 4339 + ... + 7128.

It is an arithmetic number, because the mean of its divisors is an integer number (1192672).

Almost surely, 2^15996465 is an apocalyptic number.

15996465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15996465 is a deficient number, since it is larger than the sum of its proper divisors (12627663).

15996465 is a wasteful number, since it uses less digits than its factorization.

15996465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11509 (or 11506 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 15996465 is about 3999.5581005906. The cubic root of 15996465 is about 251.9656510250.

It can be divided in two parts, 15996 and 465, that added together give a palindrome (16461).

The spelling of 15996465 in words is "fifteen million, nine hundred ninety-six thousand, four hundred sixty-five".