1020662205066 has 48 divisors (see below), whose sum is σ = 2561975342784. Its totient is φ = 287623006272.

The previous prime is 1020662205061. The next prime is 1020662205109. The reversal of 1020662205066 is 6605022660201.

1020662205066 is a `hidden beast` number, since 1 + 0 + 20 + 6 + 622 + 0 + 5 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020662205066.

It is not an unprimeable number, because it can be changed into a prime (1020662205061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55473636 + ... + 55492031.

It is an arithmetic number, because the mean of its divisors is an integer number (53374486308).

Almost surely, 2^{1020662205066} is an apocalyptic number.

1020662205066 is an abundant number, since it is smaller than the sum of its proper divisors (1541313137718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020662205066 is a wasteful number, since it uses less digits than its factorization.

1020662205066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110965755 (or 110965752 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 1020662205066 its reverse (6605022660201), we get a palindrome (7625684865267).

The spelling of 1020662205066 in words is "one trillion, twenty billion, six hundred sixty-two million, two hundred five thousand, sixty-six".