1510606661 has 2 divisors, whose sum is σ = 1510606662. Its totient is φ = 1510606660.

The previous prime is 1510606577. The next prime is 1510606663. The reversal of 1510606661 is 1666060151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459698436 + 50908225 = 38206^2 + 7135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1510606661 - 2³⁰ = 436864837 is a prime.

Together with 1510606663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1510606663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 755303330 + 755303331.

It is an arithmetic number, because the mean of its divisors is an integer number (755303331).

Almost surely, 2^1510606661 is an apocalyptic number.

It is an amenable number.

1510606661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1510606661 is an equidigital number, since it uses as much as digits as its factorization.

1510606661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1510606661 is about 38866.5236546826. The cubic root of 1510606661 is about 1147.4060402495.

The spelling of 1510606661 in words is "one billion, five hundred ten million, six hundred six thousand, six hundred sixty-one".