3523611564561 has 64 divisors (see below), whose sum is σ = 5361645348864. Its totient is φ = 2037501734400.

The previous prime is 3523611564559. The next prime is 3523611564581. The reversal of 3523611564561 is 1654651163253.

3523611564561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3523611564561 - 2¹ = 3523611564559 is a prime.

It is a super-2 number, since 2×3523611564561² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3523611564561.

It is not an unprimeable number, because it can be changed into a prime (3523611564511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1114007766 + ... + 1114010928.

It is an arithmetic number, because the mean of its divisors is an integer number (83775708576).

Almost surely, 2^{3523611564561} is an apocalyptic number.

It is an amenable number.

3523611564561 is a deficient number, since it is larger than the sum of its proper divisors (1838033784303).

3523611564561 is a wasteful number, since it uses less digits than its factorization.

3523611564561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6454.

The product of its digits is 1944000, while the sum is 48.

The spelling of 3523611564561 in words is "three trillion, five hundred twenty-three billion, six hundred eleven million, five hundred sixty-four thousand, five hundred sixty-one".