60120654561809 has 2 divisors, whose sum is σ = 60120654561810. Its totient is φ = 60120654561808.

The previous prime is 60120654561791. The next prime is 60120654561833. The reversal of 60120654561809 is 90816545602106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57413247585409 + 2707406976400 = 7577153^2 + 1645420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60120654561809 is a prime.

It is a super-2 number, since 2×60120654561809² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60120654561839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30060327280904 + 30060327280905.

It is an arithmetic number, because the mean of its divisors is an integer number (30060327280905).

Almost surely, 2^{60120654561809} is an apocalyptic number.

It is an amenable number.

60120654561809 is a deficient number, since it is larger than the sum of its proper divisors (1).

60120654561809 is an equidigital number, since it uses as much as digits as its factorization.

60120654561809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 60120654561809 in words is "sixty trillion, one hundred twenty billion, six hundred fifty-four million, five hundred sixty-one thousand, eight hundred nine".