1041646636691 has 2 divisors, whose sum is σ = 1041646636692. Its totient is φ = 1041646636690.

The previous prime is 1041646636627. The next prime is 1041646636703. The reversal of 1041646636691 is 1966366461401.

It is a strong prime.

It is an emirp because it is prime and its reverse (1966366461401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1041646636691 - 2⁶ = 1041646636627 is a prime.

It is not a weakly prime, because it can be changed into another prime (1041646636091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520823318345 + 520823318346.

It is an arithmetic number, because the mean of its divisors is an integer number (520823318346).

Almost surely, 2^{1041646636691} is an apocalyptic number.

1041646636691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1041646636691 is an equidigital number, since it uses as much as digits as its factorization.

1041646636691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 1041646636691 in words is "one trillion, forty-one billion, six hundred forty-six million, six hundred thirty-six thousand, six hundred ninety-one".