1550100666 has 8 divisors (see below), whose sum is σ = 3100201344. Its totient is φ = 516700220.

The previous prime is 1550100641. The next prime is 1550100667. The reversal of 1550100666 is 6660010551.

It is a sphenic number, since it is the product of 3 distinct primes.

1550100666 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1550100667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129175050 + ... + 129175061.

It is an arithmetic number, because the mean of its divisors is an integer number (387525168).

Almost surely, 2^1550100666 is an apocalyptic number.

1550100666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1550100666 is a wasteful number, since it uses less digits than its factorization.

1550100666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258350116.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1550100666 is about 39371.3178087805. The cubic root of 1550100666 is about 1157.3195805294.

The spelling of 1550100666 in words is "one billion, five hundred fifty million, one hundred thousand, six hundred sixty-six".