1641611435983 has 2 divisors, whose sum is σ = 1641611435984. Its totient is φ = 1641611435982.

The previous prime is 1641611435963. The next prime is 1641611436041. The reversal of 1641611435983 is 3895341161461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1641611435983 - 2⁵ = 1641611435951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1641611435983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1641611435963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820805717991 + 820805717992.

It is an arithmetic number, because the mean of its divisors is an integer number (820805717992).

Almost surely, 2^{1641611435983} is an apocalyptic number.

1641611435983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1641611435983 is an equidigital number, since it uses as much as digits as its factorization.

1641611435983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The spelling of 1641611435983 in words is "one trillion, six hundred forty-one billion, six hundred eleven million, four hundred thirty-five thousand, nine hundred eighty-three".