145665332426 has 16 divisors (see below), whose sum is σ = 226134727560. Its totient is φ = 70323717120.

The previous prime is 145665332419. The next prime is 145665332443. The reversal of 145665332426 is 624233566541.

It can be written as a sum of positive squares in 4 ways, for example, as 83813145025 + 61852187401 = 289505^2 + 248701^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9148781 + ... + 9164688.

Almost surely, 2^145665332426 is an apocalyptic number.

145665332426 is a deficient number, since it is larger than the sum of its proper divisors (80469395134).

145665332426 is a wasteful number, since it uses less digits than its factorization.

145665332426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313609.

The product of its digits is 3110400, while the sum is 47.

Adding to 145665332426 its reverse (624233566541), we get a palindrome (769898898967).

The spelling of 145665332426 in words is "one hundred forty-five billion, six hundred sixty-five million, three hundred thirty-two thousand, four hundred twenty-six".