1661060059 has 2 divisors, whose sum is σ = 1661060060. Its totient is φ = 1661060058.

The previous prime is 1661060053. The next prime is 1661060081. The reversal of 1661060059 is 9500601661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1661060059 - 2²³ = 1652671451 is a prime.

It is not a weakly prime, because it can be changed into another prime (1661060053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830530029 + 830530030.

It is an arithmetic number, because the mean of its divisors is an integer number (830530030).

Almost surely, 2^1661060059 is an apocalyptic number.

1661060059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1661060059 is an equidigital number, since it uses as much as digits as its factorization.

1661060059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 1661060059 is about 40756.1045611575. The cubic root of 1661060059 is about 1184.3001342522.

The spelling of 1661060059 in words is "one billion, six hundred sixty-one million, sixty thousand, fifty-nine".