146442565244641 has 4 divisors (see below), whose sum is σ = 146495299336452. Its totient is φ = 146389831152832.

The previous prime is 146442565244623. The next prime is 146442565244653.

146442565244641 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26611886486241 + 119830678758400 = 5158671^2 + 10946720^2 .

It is a cyclic number.

It is not a de Polignac number, because 146442565244641 - 2¹⁷ = 146442565113569 is a prime.

It is a super-2 number, since 2×146442565244641² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146442565244611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26367041740 + ... + 26367047293.

It is an arithmetic number, because the mean of its divisors is an integer number (36623824834113).

Almost surely, 2^{146442565244641} is an apocalyptic number.

It is an amenable number.

146442565244641 is a deficient number, since it is larger than the sum of its proper divisors (52734091811).

146442565244641 is an equidigital number, since it uses as much as digits as its factorization.

146442565244641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52734091810.

The product of its digits is 88473600, while the sum is 58.

The spelling of 146442565244641 in words is "one hundred forty-six trillion, four hundred forty-two billion, five hundred sixty-five million, two hundred forty-four thousand, six hundred forty-one".