146399466641 has 4 divisors (see below), whose sum is σ = 146455582500. Its totient is φ = 146343350784.

The previous prime is 146399466607. The next prime is 146399466673. The reversal of 146399466641 is 146664993641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 146664993641 = 246133 ⋅595877.

It can be written as a sum of positive squares in 2 ways, for example, as 115121775616 + 31277691025 = 339296^2 + 176855^2 .

It is a cyclic number.

It is not a de Polignac number, because 146399466641 - 2¹⁴ = 146399450257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146399466341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28054016 + ... + 28059233.

It is an arithmetic number, because the mean of its divisors is an integer number (36613895625).

Almost surely, 2^146399466641 is an apocalyptic number.

It is an amenable number.

146399466641 is a deficient number, since it is larger than the sum of its proper divisors (56115859).

146399466641 is an equidigital number, since it uses as much as digits as its factorization.

146399466641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56115858.

The product of its digits is 20155392, while the sum is 59.

The spelling of 146399466641 in words is "one hundred forty-six billion, three hundred ninety-nine million, four hundred sixty-six thousand, six hundred forty-one".