16234072569 has 135 divisors (see below), whose sum is σ = 29003542815. Its totient is φ = 9081998640.

The previous prime is 16234072559. The next prime is 16234072573. The reversal of 16234072569 is 96527043261.

The square root of 16234072569 is 127413.

It is a perfect power (a square), and thus also a powerful number.

16234072569 is a `hidden beast` number, since 16 + 2 + 3 + 4 + 0 + 72 + 569 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2401490025 + 13832582544 = 49005^2 + 117612^2 .

It is not a de Polignac number, because 16234072569 - 2⁵ = 16234072537 is a prime.

It is a super-2 number, since 2×16234072569² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16234072559) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1248774807 + ... + 1248774819.

Almost surely, 2^16234072569 is an apocalyptic number.

16234072569 is the 127413-rd square number.

16234072569 is the 63707-th centered octagonal number.

It is an amenable number.

16234072569 is a deficient number, since it is larger than the sum of its proper divisors (12769470246).

16234072569 is an frugal number, since it uses more digits than its factorization.

16234072569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 16234072569 in words is "sixteen billion, two hundred thirty-four million, seventy-two thousand, five hundred sixty-nine".