144646522414466 has 8 divisors (see below), whose sum is σ = 218889870202764. Its totient is φ = 71683232346880.

The previous prime is 144646522414439. The next prime is 144646522414477. The reversal of 144646522414466 is 664414225646441.

It can be written as a sum of positive squares in 2 ways, for example, as 116434437049441 + 28212085365025 = 10790479^2 + 5311505^2 .

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

It is a super-2 number, since 2×144646522414466² (a number of 29 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, 320014429895 + ... + 320014430346.

Almost surely, 2^{144646522414466} is an apocalyptic number.

144646522414466 is a deficient number, since it is larger than the sum of its proper divisors (74243347788298).

144646522414466 is a wasteful number, since it uses less digits than its factorization.

144646522414466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640028860356.

The product of its digits is 106168320, while the sum is 59.

The spelling of 144646522414466 in words is "one hundred forty-four trillion, six hundred forty-six billion, five hundred twenty-two million, four hundred fourteen thousand, four hundred sixty-six".