2145315322066 has 16 divisors (see below), whose sum is σ = 3678950335104. Its totient is φ = 919104120864.

The previous prime is 2145315322061. The next prime is 2145315322097. The reversal of 2145315322066 is 6602235135412.

It is a super-2 number, since 2×2145315322066² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145315322061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26352195 + ... + 26433478.

It is an arithmetic number, because the mean of its divisors is an integer number (229934395944).

Almost surely, 2^{2145315322066} is an apocalyptic number.

2145315322066 is a deficient number, since it is larger than the sum of its proper divisors (1533635013038).

2145315322066 is a wasteful number, since it uses less digits than its factorization.

2145315322066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52788585.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2145315322066 in words is "two trillion, one hundred forty-five billion, three hundred fifteen million, three hundred twenty-two thousand, sixty-six".