1330066621 has 8 divisors (see below), whose sum is σ = 1516637304. Its totient is φ = 1155532800.

The previous prime is 1330066607. The next prime is 1330066627. The reversal of 1330066621 is 1266600331.

It can be written as a sum of positive squares in 4 ways, for example, as 137124100 + 1192942521 = 11710^2 + 34539^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1330066621 - 2⁹ = 1330066109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1330066621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330066627) 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, 3008980 + ... + 3009421.

It is an arithmetic number, because the mean of its divisors is an integer number (189579663).

Almost surely, 2^1330066621 is an apocalyptic number.

It is an amenable number.

1330066621 is a deficient number, since it is larger than the sum of its proper divisors (186570683).

1330066621 is a wasteful number, since it uses less digits than its factorization.

1330066621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018431.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1330066621 is about 36470.0784342452. The cubic root of 1330066621 is about 1099.7428106705.

Adding to 1330066621 its reverse (1266600331), we get a palindrome (2596666952).

The spelling of 1330066621 in words is "one billion, three hundred thirty million, sixty-six thousand, six hundred twenty-one".