60607171721 has 2 divisors, whose sum is σ = 60607171722. Its totient is φ = 60607171720.

The previous prime is 60607171661. The next prime is 60607171769. The reversal of 60607171721 is 12717170606.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60484516096 + 122655625 = 245936^2 + 11075^2 .

It is a cyclic number.

It is not a de Polignac number, because 60607171721 - 2²⁶ = 60540062857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (60607174721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30303585860 + 30303585861.

It is an arithmetic number, because the mean of its divisors is an integer number (30303585861).

Almost surely, 2^60607171721 is an apocalyptic number.

It is an amenable number.

60607171721 is a deficient number, since it is larger than the sum of its proper divisors (1).

60607171721 is an equidigital number, since it uses as much as digits as its factorization.

60607171721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 38.

The spelling of 60607171721 in words is "sixty billion, six hundred seven million, one hundred seventy-one thousand, seven hundred twenty-one".