416416113661 has 2 divisors, whose sum is σ = 416416113662. Its totient is φ = 416416113660.

The previous prime is 416416113643. The next prime is 416416113671. The reversal of 416416113661 is 166311614614.

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., 371391517561 + 45024596100 = 609419^2 + 212190^2 .

It is a cyclic number.

It is not a de Polignac number, because 416416113661 - 2²¹ = 416414016509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416416113601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208208056830 + 208208056831.

It is an arithmetic number, because the mean of its divisors is an integer number (208208056831).

Almost surely, 2^416416113661 is an apocalyptic number.

It is an amenable number.

416416113661 is a deficient number, since it is larger than the sum of its proper divisors (1).

416416113661 is an equidigital number, since it uses as much as digits as its factorization.

416416113661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The spelling of 416416113661 in words is "four hundred sixteen billion, four hundred sixteen million, one hundred thirteen thousand, six hundred sixty-one".