1206106571641 has 2 divisors, whose sum is σ = 1206106571642. Its totient is φ = 1206106571640.

The previous prime is 1206106571609. The next prime is 1206106571687. The reversal of 1206106571641 is 1461756016021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017316321641 + 188790250000 = 1008621^2 + 434500^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206106571641 - 2⁵ = 1206106571609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1206106571594 and 1206106571603.

It is not a weakly prime, because it can be changed into another prime (1206106572641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603053285820 + 603053285821.

It is an arithmetic number, because the mean of its divisors is an integer number (603053285821).

Almost surely, 2^{1206106571641} is an apocalyptic number.

It is an amenable number.

1206106571641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206106571641 is an equidigital number, since it uses as much as digits as its factorization.

1206106571641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 1206106571641 in words is "one trillion, two hundred six billion, one hundred six million, five hundred seventy-one thousand, six hundred forty-one".