146664880044437 has 2 divisors, whose sum is σ = 146664880044438. Its totient is φ = 146664880044436.

The previous prime is 146664880044299. The next prime is 146664880044481. The reversal of 146664880044437 is 734440088466641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80288158853956 + 66376721190481 = 8960366^2 + 8147191^2 .

It is a cyclic number.

It is not a de Polignac number, because 146664880044437 - 2⁸ = 146664880044181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146664880044737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73332440022218 + 73332440022219.

It is an arithmetic number, because the mean of its divisors is an integer number (73332440022219).

Almost surely, 2^{146664880044437} is an apocalyptic number.

It is an amenable number.

146664880044437 is a deficient number, since it is larger than the sum of its proper divisors (1).

146664880044437 is an equidigital number, since it uses as much as digits as its factorization.

146664880044437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 297271296, while the sum is 65.

The spelling of 146664880044437 in words is "one hundred forty-six trillion, six hundred sixty-four billion, eight hundred eighty million, forty-four thousand, four hundred thirty-seven".