1641641654267 has 2 divisors, whose sum is σ = 1641641654268. Its totient is φ = 1641641654266.

The previous prime is 1641641654221. The next prime is 1641641654291. The reversal of 1641641654267 is 7624561461461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1641641654267 - 2³⁴ = 1624461785083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1641641651267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820820827133 + 820820827134.

It is an arithmetic number, because the mean of its divisors is an integer number (820820827134).

Almost surely, 2^{1641641654267} is an apocalyptic number.

1641641654267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641641654267 is an equidigital number, since it uses as much as digits as its factorization.

1641641654267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5806080, while the sum is 53.

The spelling of 1641641654267 in words is "one trillion, six hundred forty-one billion, six hundred forty-one million, six hundred fifty-four thousand, two hundred sixty-seven".