2066355066442 has 32 divisors (see below), whose sum is σ = 3325016822400. Its totient is φ = 959640127488.

The previous prime is 2066355066431. The next prime is 2066355066497. The reversal of 2066355066442 is 2446605536602.

It is a super-2 number, since 2×2066355066442² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195034 + ... + 2991802.

It is an arithmetic number, because the mean of its divisors is an integer number (103906775700).

Almost surely, 2^{2066355066442} is an apocalyptic number.

2066355066442 is a deficient number, since it is larger than the sum of its proper divisors (1258661755958).

2066355066442 is a wasteful number, since it uses less digits than its factorization.

2066355066442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797790.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 2066355066442 in words is "two trillion, sixty-six billion, three hundred fifty-five million, sixty-six thousand, four hundred forty-two".