1660576061 has 2 divisors, whose sum is σ = 1660576062. Its totient is φ = 1660576060.

The previous prime is 1660575979. The next prime is 1660576067. The reversal of 1660576061 is 1606750661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1632644836 + 27931225 = 40406^2 + 5285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1660576061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1660576067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830288030 + 830288031.

It is an arithmetic number, because the mean of its divisors is an integer number (830288031).

Almost surely, 2^1660576061 is an apocalyptic number.

It is an amenable number.

1660576061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660576061 is an equidigital number, since it uses as much as digits as its factorization.

1660576061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1660576061 is about 40750.1663922983. The cubic root of 1660576061 is about 1184.1850963532.

The spelling of 1660576061 in words is "one billion, six hundred sixty million, five hundred seventy-six thousand, sixty-one".