60657170607661 has 2 divisors, whose sum is σ = 60657170607662. Its totient is φ = 60657170607660.

The previous prime is 60657170607643. The next prime is 60657170607779. The reversal of 60657170607661 is 16670607175606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56741659682436 + 3915510925225 = 7532706^2 + 1978765^2 .

It is a cyclic number.

It is not a de Polignac number, because 60657170607661 - 2²³ = 60657162219053 is a prime.

It is a super-4 number, since 4×60657170607661⁴ (a number of 56 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 60657170607596 and 60657170607605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60657170007661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30328585303830 + 30328585303831.

It is an arithmetic number, because the mean of its divisors is an integer number (30328585303831).

Almost surely, 2^{60657170607661} is an apocalyptic number.

It is an amenable number.

60657170607661 is a deficient number, since it is larger than the sum of its proper divisors (1).

60657170607661 is an equidigital number, since it uses as much as digits as its factorization.

60657170607661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 60657170607661 in words is "sixty trillion, six hundred fifty-seven billion, one hundred seventy million, six hundred seven thousand, six hundred sixty-one".