16261065 has 12 divisors (see below), whose sum is σ = 28185924. Its totient is φ = 8672544.

The previous prime is 16261001. The next prime is 16261073. The reversal of 16261065 is 56016261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5212089 + 11048976 = 2283^2 + 3324^2 .

It is not a de Polignac number, because 16261065 - 2⁶ = 16261001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180634 + ... + 180723.

It is an arithmetic number, because the mean of its divisors is an integer number (2348827).

Almost surely, 2^16261065 is an apocalyptic number.

16261065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16261065 is a deficient number, since it is larger than the sum of its proper divisors (11924859).

16261065 is a wasteful number, since it uses less digits than its factorization.

16261065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361368 (or 361365 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 16261065 is about 4032.5010849348. The cubic root of 16261065 is about 253.3473282127.

The spelling of 16261065 in words is "sixteen million, two hundred sixty-one thousand, sixty-five".