1660601023 has 2 divisors, whose sum is σ = 1660601024. Its totient is φ = 1660601022.

The previous prime is 1660601011. The next prime is 1660601051. The reversal of 1660601023 is 3201060661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1660601023 - 2²¹ = 1658503871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1660601053) 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, 830300511 + 830300512.

It is an arithmetic number, because the mean of its divisors is an integer number (830300512).

Almost surely, 2^1660601023 is an apocalyptic number.

1660601023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660601023 is an equidigital number, since it uses as much as digits as its factorization.

1660601023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1660601023 is about 40750.4726721053. The cubic root of 1660601023 is about 1184.1910299327.

Adding to 1660601023 its reverse (3201060661), we get a palindrome (4861661684).

The spelling of 1660601023 in words is "one billion, six hundred sixty million, six hundred one thousand, twenty-three".