10561263556 has 12 divisors (see below), whose sum is σ = 19285785792. Its totient is φ = 5051039048.

The previous prime is 10561263491. The next prime is 10561263569. The reversal of 10561263556 is 65536216501.

It is a super-2 number, since 2×10561263556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57398080 + ... + 57398263.

It is an arithmetic number, because the mean of its divisors is an integer number (1607148816).

Almost surely, 2^10561263556 is an apocalyptic number.

It is an amenable number.

10561263556 is a deficient number, since it is larger than the sum of its proper divisors (8724522236).

10561263556 is a wasteful number, since it uses less digits than its factorization.

10561263556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114796370 (or 114796368 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 10561263556 in words is "ten billion, five hundred sixty-one million, two hundred sixty-three thousand, five hundred fifty-six".