10005565453561 has 4 divisors (see below), whose sum is σ = 10005583824000. Its totient is φ = 10005547083124.

The previous prime is 10005565453519. The next prime is 10005565453601. The reversal of 10005565453561 is 16535456550001.

10005565453561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10005565453561 is a prime.

It is a super-2 number, since 2×10005565453561² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10005565453511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8342461 + ... + 9466138.

It is an arithmetic number, because the mean of its divisors is an integer number (2501395956000).

Almost surely, 2^{10005565453561} is an apocalyptic number.

It is an amenable number.

10005565453561 is a deficient number, since it is larger than the sum of its proper divisors (18370439).

10005565453561 is an equidigital number, since it uses as much as digits as its factorization.

10005565453561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18370438.

The product of its (nonzero) digits is 1350000, while the sum is 46.

The spelling of 10005565453561 in words is "ten trillion, five billion, five hundred sixty-five million, four hundred fifty-three thousand, five hundred sixty-one".