16366365 has 24 divisors (see below), whose sum is σ = 28474368. Its totient is φ = 8696160.

The previous prime is 16366349. The next prime is 16366367. The reversal of 16366365 is 56366361.

It is a happy number.

16366365 is a `hidden beast` number, since 16 + 3 + 6 + 636 + 5 = 666.

It is not a de Polignac number, because 16366365 - 2⁴ = 16366349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16366367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16020 + ... + 17010.

It is an arithmetic number, because the mean of its divisors is an integer number (1186432).

Almost surely, 2^16366365 is an apocalyptic number.

16366365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16366365 is a deficient number, since it is larger than the sum of its proper divisors (12108003).

16366365 is a wasteful number, since it uses less digits than its factorization.

16366365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1366 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 16366365 is about 4045.5364292019. The cubic root of 16366365 is about 253.8930098926.

It can be divided in two parts, 1636 and 6365, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 16366365 in words is "sixteen million, three hundred sixty-six thousand, three hundred sixty-five".