7146636220001 has 2 divisors, whose sum is σ = 7146636220002. Its totient is φ = 7146636220000.

The previous prime is 7146636219997. The next prime is 7146636220007. The reversal of 7146636220001 is 1000226366417.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7108883730001 + 37752490000 = 2666249^2 + 194300^2 .

It is a cyclic number.

It is not a de Polignac number, because 7146636220001 - 2² = 7146636219997 is a prime.

It is a super-2 number, since 2×7146636220001² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7146636220007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573318110000 + 3573318110001.

It is an arithmetic number, because the mean of its divisors is an integer number (3573318110001).

Almost surely, 2^{7146636220001} is an apocalyptic number.

It is an amenable number.

7146636220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7146636220001 is an equidigital number, since it uses as much as digits as its factorization.

7146636220001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

It can be divided in two parts, 7146636 and 220001, that added together give a palindrome (7366637).

The spelling of 7146636220001 in words is "seven trillion, one hundred forty-six billion, six hundred thirty-six million, two hundred twenty thousand, one".