1006561550083 has 2 divisors, whose sum is σ = 1006561550084. Its totient is φ = 1006561550082.

The previous prime is 1006561550077. The next prime is 1006561550123. The reversal of 1006561550083 is 3800551656001.

It is an a-pointer prime, because the next prime (1006561550123) can be obtained adding 1006561550083 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1006561550083 - 2⁹ = 1006561549571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006561550023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503280775041 + 503280775042.

It is an arithmetic number, because the mean of its divisors is an integer number (503280775042).

Almost surely, 2^{1006561550083} is an apocalyptic number.

1006561550083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006561550083 is an equidigital number, since it uses as much as digits as its factorization.

1006561550083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 1006561550083 in words is "one trillion, six billion, five hundred sixty-one million, five hundred fifty thousand, eighty-three".