610660400340677 has 2 divisors, whose sum is σ = 610660400340678. Its totient is φ = 610660400340676.

The previous prime is 610660400340649. The next prime is 610660400340689. The reversal of 610660400340677 is 776043004066016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 371815924635841 + 238844475704836 = 19282529^2 + 15454594^2 .

It is a cyclic number.

It is not a de Polignac number, because 610660400340677 - 2²⁰ = 610660399292101 is a prime.

It is a super-2 number, since 2×610660400340677² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610660400342677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305330200170338 + 305330200170339.

It is an arithmetic number, because the mean of its divisors is an integer number (305330200170339).

Almost surely, 2^{610660400340677} is an apocalyptic number.

It is an amenable number.

610660400340677 is a deficient number, since it is larger than the sum of its proper divisors (1).

610660400340677 is an equidigital number, since it uses as much as digits as its factorization.

610660400340677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 610660400340677 in words is "six hundred ten trillion, six hundred sixty billion, four hundred million, three hundred forty thousand, six hundred seventy-seven".