146664535657 has 2 divisors, whose sum is σ = 146664535658. Its totient is φ = 146664535656.

The previous prime is 146664535651. The next prime is 146664535673. The reversal of 146664535657 is 756535466641.

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., 134182283481 + 12482252176 = 366309^2 + 111724^2 .

It is a cyclic number.

It is not a de Polignac number, because 146664535657 - 2²³ = 146656147049 is a prime.

It is not a weakly prime, because it can be changed into another prime (146664535651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73332267828 + 73332267829.

It is an arithmetic number, because the mean of its divisors is an integer number (73332267829).

Almost surely, 2^146664535657 is an apocalyptic number.

It is an amenable number.

146664535657 is a deficient number, since it is larger than the sum of its proper divisors (1).

146664535657 is an equidigital number, since it uses as much as digits as its factorization.

146664535657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432000, while the sum is 58.

The spelling of 146664535657 in words is "one hundred forty-six billion, six hundred sixty-four million, five hundred thirty-five thousand, six hundred fifty-seven".