10661055115 has 4 divisors (see below), whose sum is σ = 12793266144. Its totient is φ = 8528844088.

The previous prime is 10661055089. The next prime is 10661055121. The reversal of 10661055115 is 51155016601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10661055115 - 2¹³ = 10661046923 is a prime.

It is a super-2 number, since 2×10661055115² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 1066105507 + ... + 1066105516.

It is an arithmetic number, because the mean of its divisors is an integer number (3198316536).

Almost surely, 2^10661055115 is an apocalyptic number.

10661055115 is a deficient number, since it is larger than the sum of its proper divisors (2132211029).

10661055115 is an equidigital number, since it uses as much as digits as its factorization.

10661055115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132211028.

The product of its (nonzero) digits is 4500, while the sum is 31.

The spelling of 10661055115 in words is "ten billion, six hundred sixty-one million, fifty-five thousand, one hundred fifteen".