4071662176661 has 2 divisors, whose sum is σ = 4071662176662. Its totient is φ = 4071662176660.

The previous prime is 4071662176633. The next prime is 4071662176691. The reversal of 4071662176661 is 1666712661704.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4071315062500 + 347114161 = 2017750^2 + 18631^2 .

It is a cyclic number.

It is not a de Polignac number, because 4071662176661 - 2¹⁴ = 4071662160277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4071662176691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2035831088330 + 2035831088331.

It is an arithmetic number, because the mean of its divisors is an integer number (2035831088331).

Almost surely, 2^{4071662176661} is an apocalyptic number.

It is an amenable number.

4071662176661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4071662176661 is an equidigital number, since it uses as much as digits as its factorization.

4071662176661 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 53.

The spelling of 4071662176661 in words is "four trillion, seventy-one billion, six hundred sixty-two million, one hundred seventy-six thousand, six hundred sixty-one".