133545818865811 has 8 divisors (see below), whose sum is σ = 145706166517248. Its totient is φ = 121388774325000.

The previous prime is 133545818865803. The next prime is 133545818865863. The reversal of 133545818865811 is 118568818545331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133545818865811 - 2³ = 133545818865803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133545818865211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 825693115 + ... + 825854836.

It is an arithmetic number, because the mean of its divisors is an integer number (18213270814656).

Almost surely, 2^{133545818865811} is an apocalyptic number.

133545818865811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133545818865811 is a deficient number, since it is larger than the sum of its proper divisors (12160347651437).

133545818865811 is a wasteful number, since it uses less digits than its factorization.

133545818865811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651555313.

The product of its digits is 110592000, while the sum is 67.

The spelling of 133545818865811 in words is "one hundred thirty-three trillion, five hundred forty-five billion, eight hundred eighteen million, eight hundred sixty-five thousand, eight hundred eleven".