133166653064545 has 16 divisors (see below), whose sum is σ = 160370334080208. Its totient is φ = 106153096734720.

The previous prime is 133166653064531. The next prime is 133166653064609. The reversal of 133166653064545 is 545460356661331.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 25208713805584 + 107957939258961 = 5020828^2 + 10390281^2 .

It is a de Polignac number, because none of the positive numbers 2^k-133166653064545 is a prime.

It is a super-3 number, since 3×133166653064545³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133166653064545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151353337 + ... + 152230633.

It is an arithmetic number, because the mean of its divisors is an integer number (10023145880013).

Almost surely, 2^{133166653064545} is an apocalyptic number.

It is an amenable number.

133166653064545 is a deficient number, since it is larger than the sum of its proper divisors (27203681015663).

133166653064545 is a wasteful number, since it uses less digits than its factorization.

133166653064545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985620.

The product of its (nonzero) digits is 69984000, while the sum is 58.

The spelling of 133166653064545 in words is "one hundred thirty-three trillion, one hundred sixty-six billion, six hundred fifty-three million, sixty-four thousand, five hundred forty-five".