2164064365066 has 8 divisors (see below), whose sum is σ = 3246565860900. Its totient is φ = 1081875744768.

The previous prime is 2164064365049. The next prime is 2164064365091. The reversal of 2164064365066 is 6605634604612.

It can be written as a sum of positive squares in 2 ways, for example, as 2164049887041 + 14478025 = 1471071^2 + 3805^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2164064365066² (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 3 ways as a sum of consecutive naturals, for example, 78201591 + ... + 78229258.

Almost surely, 2^{2164064365066} is an apocalyptic number.

2164064365066 is a deficient number, since it is larger than the sum of its proper divisors (1082501495834).

2164064365066 is a wasteful number, since it uses less digits than its factorization.

2164064365066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156437768.

The product of its (nonzero) digits is 3732480, while the sum is 49.

Adding to 2164064365066 its reverse (6605634604612), we get a palindrome (8769698969678).

The spelling of 2164064365066 in words is "two trillion, one hundred sixty-four billion, sixty-four million, three hundred sixty-five thousand, sixty-six".