10661556060650 has 48 divisors (see below), whose sum is σ = 21633795223488. Its totient is φ = 3876834720000.

The previous prime is 10661556060641. The next prime is 10661556060679. The reversal of 10661556060650 is 5606065516601.

It is a super-2 number, since 2×10661556060650² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10661556060595 and 10661556060604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24663875 + ... + 25092425.

It is an arithmetic number, because the mean of its divisors is an integer number (450704067156).

Almost surely, 2^{10661556060650} is an apocalyptic number.

10661556060650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10661556060650 is an abundant number, since it is smaller than the sum of its proper divisors (10972239162838).

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

10661556060650 is a wasteful number, since it uses less digits than its factorization.

10661556060650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473807 (or 473802 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 10661556060650 in words is "ten trillion, six hundred sixty-one billion, five hundred fifty-six million, sixty thousand, six hundred fifty".