1530135666 has 48 divisors (see below), whose sum is σ = 3477412224. Its totient is φ = 485691552.

The previous prime is 1530135661. The next prime is 1530135709. The reversal of 1530135666 is 6665310351.

It is a self number, because there is not a number n which added to its sum of digits gives 1530135666.

It is not an unprimeable number, because it can be changed into a prime (1530135661) 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, 6861 + ... + 55743.

It is an arithmetic number, because the mean of its divisors is an integer number (72446088).

Almost surely, 2^1530135666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530135666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1738706112).

1530135666 is an abundant number, since it is smaller than the sum of its proper divisors (1947276558).

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

1530135666 is a wasteful number, since it uses less digits than its factorization.

1530135666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48975 (or 48972 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 1530135666 is about 39116.9485773111. The cubic root of 1530135666 is about 1152.3294097401.

The spelling of 1530135666 in words is "one billion, five hundred thirty million, one hundred thirty-five thousand, six hundred sixty-six".