10661005050 has 48 divisors (see below), whose sum is σ = 27054176160. Its totient is φ = 2776818240.

The previous prime is 10661005039. The next prime is 10661005097. The reversal of 10661005050 is 5050016601.

It is a super-2 number, since 2×10661005050² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10661005050.

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, 819985 + ... + 832884.

It is an arithmetic number, because the mean of its divisors is an integer number (563628670).

Almost surely, 2^10661005050 is an apocalyptic number.

10661005050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10661005050 is an abundant number, since it is smaller than the sum of its proper divisors (16393171110).

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

10661005050 is a wasteful number, since it uses less digits than its factorization.

10661005050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652927 (or 1652922 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 10661005050 in words is "ten billion, six hundred sixty-one million, five thousand, fifty".