133465222031645 has 64 divisors (see below), whose sum is σ = 188128848208896. Its totient is φ = 88988594872320.

The previous prime is 133465222031579. The next prime is 133465222031681. The reversal of 133465222031645 is 546130222564331.

It is a de Polignac number, because none of the positive numbers 2^k-133465222031645 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133465222031645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3834418832 + ... + 3834453638.

It is an arithmetic number, because the mean of its divisors is an integer number (2939513253264).

Almost surely, 2^{133465222031645} is an apocalyptic number.

It is an amenable number.

133465222031645 is a deficient number, since it is larger than the sum of its proper divisors (54663626177251).

133465222031645 is a wasteful number, since it uses less digits than its factorization.

133465222031645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43710.

The product of its (nonzero) digits is 3110400, while the sum is 47.

Adding to 133465222031645 its reverse (546130222564331), we get a palindrome (679595444595976).

The spelling of 133465222031645 in words is "one hundred thirty-three trillion, four hundred sixty-five billion, two hundred twenty-two million, thirty-one thousand, six hundred forty-five".