10561996960 has 24 divisors (see below), whose sum is σ = 24952718196. Its totient is φ = 4224798720.

The previous prime is 10561996943. The next prime is 10561996979. The reversal of 10561996960 is 6969916501.

It can be written as a sum of positive squares in 2 ways, for example, as 10143712656 + 418284304 = 100716^2 + 20452^2 .

It is a super-2 number, since 2×10561996960² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10561996898 and 10561996907.

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, 33006081 + ... + 33006400.

Almost surely, 2^10561996960 is an apocalyptic number.

10561996960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10561996960 is an abundant number, since it is smaller than the sum of its proper divisors (14390721236).

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

10561996960 is an equidigital number, since it uses as much as digits as its factorization.

10561996960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66012496 (or 66012488 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 52.

The spelling of 10561996960 in words is "ten billion, five hundred sixty-one million, nine hundred ninety-six thousand, nine hundred sixty".