101043666 has 32 divisors (see below), whose sum is σ = 225374400. Its totient is φ = 33556320.

The previous prime is 101043661. The next prime is 101043667. The reversal of 101043666 is 666340101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (101043661) 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 15 ways as a sum of consecutive naturals, for example, 11845 + ... + 18503.

It is an arithmetic number, because the mean of its divisors is an integer number (7042950).

Almost surely, 2^101043666 is an apocalyptic number.

101043666 is an abundant number, since it is smaller than the sum of its proper divisors (124330734).

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

101043666 is a wasteful number, since it uses less digits than its factorization.

101043666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951 (or 6945 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 101043666 is about 10052.0478510600. The cubic root of 101043666 is about 465.7680543047.

Adding to 101043666 its reverse (666340101), we get a palindrome (767383767).

The spelling of 101043666 in words is "one hundred one million, forty-three thousand, six hundred sixty-six".