66602400426022 has 4 divisors (see below), whose sum is σ = 99903600639036. Its totient is φ = 33301200213010.

The previous prime is 66602400425993. The next prime is 66602400426041. The reversal of 66602400426022 is 22062400420666.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16650600106504 + ... + 16650600106507.

It is an arithmetic number, because the mean of its divisors is an integer number (24975900159759).

Almost surely, 2^{66602400426022} is an apocalyptic number.

66602400426022 is a deficient number, since it is larger than the sum of its proper divisors (33301200213014).

66602400426022 is a wasteful number, since it uses less digits than its factorization.

66602400426022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33301200213013.

The product of its (nonzero) digits is 331776, while the sum is 40.

Adding to 66602400426022 its reverse (22062400420666), we get a palindrome (88664800846688).

The spelling of 66602400426022 in words is "sixty-six trillion, six hundred two billion, four hundred million, four hundred twenty-six thousand, twenty-two".