10555116666 has 16 divisors (see below), whose sum is σ = 21176830944. Its totient is φ = 3507272624.

The previous prime is 10555116643. The next prime is 10555116667. The reversal of 10555116666 is 66661155501.

It is a super-2 number, since 2×10555116666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10555116667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772840 + ... + 2776643.

It is an arithmetic number, because the mean of its divisors is an integer number (1323551934).

Almost surely, 2^10555116666 is an apocalyptic number.

10555116666 is an abundant number, since it is smaller than the sum of its proper divisors (10621714278).

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

10555116666 is a wasteful number, since it uses less digits than its factorization.

10555116666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5549805.

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 10555116666 in words is "ten billion, five hundred fifty-five million, one hundred sixteen thousand, six hundred sixty-six".