16291065 has 16 divisors (see below), whose sum is σ = 29789568. Its totient is φ = 7447296.

The previous prime is 16291057. The next prime is 16291091. The reversal of 16291065 is 56019261.

It is not a de Polignac number, because 16291065 - 2³ = 16291057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77472 + ... + 77681.

It is an arithmetic number, because the mean of its divisors is an integer number (1861848).

Almost surely, 2^16291065 is an apocalyptic number.

16291065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16291065 is a deficient number, since it is larger than the sum of its proper divisors (13498503).

16291065 is a wasteful number, since it uses less digits than its factorization.

16291065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155168.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 16291065 is about 4036.2191466768. The cubic root of 16291065 is about 253.5030324595.

The spelling of 16291065 in words is "sixteen million, two hundred ninety-one thousand, sixty-five".