601660701571 has 2 divisors, whose sum is σ = 601660701572. Its totient is φ = 601660701570.

The previous prime is 601660701511. The next prime is 601660701583. The reversal of 601660701571 is 175107066106.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 601660701571 - 2¹⁵ = 601660668803 is a prime.

It is not a weakly prime, because it can be changed into another prime (601660701511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300830350785 + 300830350786.

It is an arithmetic number, because the mean of its divisors is an integer number (300830350786).

Almost surely, 2^601660701571 is an apocalyptic number.

601660701571 is a deficient number, since it is larger than the sum of its proper divisors (1).

601660701571 is an equidigital number, since it uses as much as digits as its factorization.

601660701571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 40.

Adding to 601660701571 its reverse (175107066106), we get a palindrome (776767767677).

The spelling of 601660701571 in words is "six hundred one billion, six hundred sixty million, seven hundred one thousand, five hundred seventy-one".