1006660513 has 2 divisors, whose sum is σ = 1006660514. Its totient is φ = 1006660512.

The previous prime is 1006660477. The next prime is 1006660541. The reversal of 1006660513 is 3150666001.

It is an a-pointer prime, because the next prime (1006660541) can be obtained adding 1006660513 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 536941584 + 469718929 = 23172^2 + 21673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006660513 - 2²⁵ = 973106081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006660553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503330256 + 503330257.

It is an arithmetic number, because the mean of its divisors is an integer number (503330257).

Almost surely, 2^1006660513 is an apocalyptic number.

It is an amenable number.

1006660513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006660513 is an equidigital number, since it uses as much as digits as its factorization.

1006660513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1006660513 is about 31727.9137826615. The cubic root of 1006660513 is about 1002.2152599994.

The spelling of 1006660513 in words is "one billion, six million, six hundred sixty thousand, five hundred thirteen".