10561521030607 has 4 divisors (see below), whose sum is σ = 10561557389656. Its totient is φ = 10561484671560.

The previous prime is 10561521030559. The next prime is 10561521030611. The reversal of 10561521030607 is 70603012516501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10561521030607 - 2³¹ = 10559373546959 is a prime.

It is a super-2 number, since 2×10561521030607² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561521730607) 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, 17740269 + ... + 18325942.

It is an arithmetic number, because the mean of its divisors is an integer number (2640389347414).

Almost surely, 2^{10561521030607} is an apocalyptic number.

10561521030607 is a deficient number, since it is larger than the sum of its proper divisors (36359049).

10561521030607 is an equidigital number, since it uses as much as digits as its factorization.

10561521030607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36359048.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 10561521030607 in words is "ten trillion, five hundred sixty-one billion, five hundred twenty-one million, thirty thousand, six hundred seven".