1010115666 has 48 divisors (see below), whose sum is σ = 2559420864. Its totient is φ = 281891232.

The previous prime is 1010115661. The next prime is 1010115671. The reversal of 1010115666 is 6665110101.

It is an interprime number because it is at equal distance from previous prime (1010115661) and next prime (1010115671).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1010115661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87801 + ... + 98636.

It is an arithmetic number, because the mean of its divisors is an integer number (53321268).

Almost surely, 2^1010115666 is an apocalyptic number.

1010115666 is an abundant number, since it is smaller than the sum of its proper divisors (1549305198).

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

1010115666 is a wasteful number, since it uses less digits than its factorization.

1010115666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186495 (or 186492 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1010115666 is about 31782.3168758981. The cubic root of 1010115666 is about 1003.3605825010.

Adding to 1010115666 its reverse (6665110101), we get a palindrome (7675225767).

The spelling of 1010115666 in words is "one billion, ten million, one hundred fifteen thousand, six hundred sixty-six".