16151105569 has 9 divisors (see below), whose sum is σ = 16269777331. Its totient is φ = 16033295920.

The previous prime is 16151105567. The next prime is 16151105599. The reversal of 16151105569 is 96550115161.

The square root of 16151105569 is 127087.

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

It can be written as a sum of positive squares in only one way, i.e., 42419169 + 16108686400 = 6513^2 + 126920^2 .

It is not a de Polignac number, because 16151105569 - 2¹ = 16151105567 is a prime.

It is a super-2 number, since 2×16151105569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16151105567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21223149 + ... + 21223909.

Almost surely, 2^16151105569 is an apocalyptic number.

16151105569 is the 127087-th square number.

16151105569 is the 63544-th centered octagonal number.

It is an amenable number.

16151105569 is a deficient number, since it is larger than the sum of its proper divisors (118671762).

16151105569 is an frugal number, since it uses more digits than its factorization.

16151105569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 40.

The spelling of 16151105569 in words is "sixteen billion, one hundred fifty-one million, one hundred five thousand, five hundred sixty-nine".