16377065 has 4 divisors (see below), whose sum is σ = 19652484. Its totient is φ = 13101648.

The previous prime is 16377059. The next prime is 16377089. The reversal of 16377065 is 56077361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56077361 = 61 ⋅919301.

It can be written as a sum of positive squares in 2 ways, for example, as 2262016 + 14115049 = 1504^2 + 3757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16377065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637702 + ... + 1637711.

It is an arithmetic number, because the mean of its divisors is an integer number (4913121).

Almost surely, 2^16377065 is an apocalyptic number.

It is an amenable number.

16377065 is a deficient number, since it is larger than the sum of its proper divisors (3275419).

16377065 is an equidigital number, since it uses as much as digits as its factorization.

16377065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275418.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 16377065 is about 4046.8586582682. The cubic root of 16377065 is about 253.9483278855.

The spelling of 16377065 in words is "sixteen million, three hundred seventy-seven thousand, sixty-five".