6453069561 has 9 divisors (see below), whose sum is σ = 9321448591. Its totient is φ = 4301885712.

The previous prime is 6453069533. The next prime is 6453069569. The reversal of 6453069561 is 1659603546.

The square root of 6453069561 is 80331.

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

6453069561 is a `hidden beast` number, since 6 + 4 + 530 + 69 + 56 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 939116025 + 5513953536 = 30645^2 + 74256^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 6453069561 - 2¹³ = 6453061369 is a prime.

It is a super-3 number, since 3×6453069561³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6453069569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 227605 + ... + 254381.

Almost surely, 2^6453069561 is an apocalyptic number.

6453069561 is the 80331-st square number.

6453069561 is the 40166-th centered octagonal number.

It is an amenable number.

6453069561 is a deficient number, since it is larger than the sum of its proper divisors (2868379030).

6453069561 is an frugal number, since it uses more digits than its factorization.

6453069561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53560 (or 26780 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The cubic root of 6453069561 is about 1861.7532280955.

The spelling of 6453069561 in words is "six billion, four hundred fifty-three million, sixty-nine thousand, five hundred sixty-one".