10561343894808 has 256 divisors, whose sum is σ = 32150749962240. Its totient is φ = 2822262220800.

The previous prime is 10561343894749. The next prime is 10561343894851. The reversal of 10561343894808 is 80849834316501.

It is a happy number.

It is a super-2 number, since 2×10561343894808² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 293981535 + ... + 294017457.

It is an arithmetic number, because the mean of its divisors is an integer number (125588867040).

Almost surely, 2^{10561343894808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10561343894808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16075374981120).

10561343894808 is an abundant number, since it is smaller than the sum of its proper divisors (21589406067432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10561343894808 is a wasteful number, since it uses less digits than its factorization.

10561343894808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36598 (or 36594 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 10561343894808 in words is "ten trillion, five hundred sixty-one billion, three hundred forty-three million, eight hundred ninety-four thousand, eight hundred eight".