133666245153424 has 20 divisors (see below), whose sum is σ = 259023460483260. Its totient is φ = 66821481157760.

The previous prime is 133666245153401. The next prime is 133666245153439. The reversal of 133666245153424 is 424351542666331.

It can be written as a sum of positive squares in 2 ways, for example, as 25679231931024 + 107987013222400 = 5067468^2 + 10391680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727493959 + ... + 727677670.

It is an arithmetic number, because the mean of its divisors is an integer number (12951173024163).

Almost surely, 2^{133666245153424} is an apocalyptic number.

It is an amenable number.

133666245153424 is a deficient number, since it is larger than the sum of its proper divisors (125357215329836).

133666245153424 is a wasteful number, since it uses less digits than its factorization.

133666245153424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455177378 (or 1455177372 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 55.

The spelling of 133666245153424 in words is "one hundred thirty-three trillion, six hundred sixty-six billion, two hundred forty-five million, one hundred fifty-three thousand, four hundred twenty-four".