133560066055501 has 4 divisors (see below), whose sum is σ = 141416540529372. Its totient is φ = 125703591581632.

The previous prime is 133560066055499. The next prime is 133560066055531. The reversal of 133560066055501 is 105550660065331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50267958200100 + 83292107855401 = 7089990^2 + 9126451^2 .

It is a cyclic number.

It is not a de Polignac number, because 133560066055501 - 2¹ = 133560066055499 is a prime.

It is a super-2 number, since 2×133560066055501² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133560066055531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928237236910 + ... + 3928237236943.

It is an arithmetic number, because the mean of its divisors is an integer number (35354135132343).

Almost surely, 2^{133560066055501} is an apocalyptic number.

It is an amenable number.

133560066055501 is a deficient number, since it is larger than the sum of its proper divisors (7856474473871).

133560066055501 is an equidigital number, since it uses as much as digits as its factorization.

133560066055501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856474473870.

The product of its (nonzero) digits is 1215000, while the sum is 46.

The spelling of 133560066055501 in words is "one hundred thirty-three trillion, five hundred sixty billion, sixty-six million, fifty-five thousand, five hundred one".