133020356442605 has 32 divisors (see below), whose sum is σ = 170691736749408. Its totient is φ = 99162397696000.

The previous prime is 133020356442601. The next prime is 133020356442607. The reversal of 133020356442605 is 506244653020331.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 6965239402276 + 126055117040329 = 2639174^2 + 11227427^2 .

It is not a de Polignac number, because 133020356442605 - 2² = 133020356442601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020356442601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393204209 + ... + 393542361.

It is an arithmetic number, because the mean of its divisors is an integer number (5334116773419).

Almost surely, 2^{133020356442605} is an apocalyptic number.

It is an amenable number.

133020356442605 is a deficient number, since it is larger than the sum of its proper divisors (37671380306803).

133020356442605 is a wasteful number, since it uses less digits than its factorization.

133020356442605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384097.

The product of its (nonzero) digits is 1555200, while the sum is 44.

The spelling of 133020356442605 in words is "one hundred thirty-three trillion, twenty billion, three hundred fifty-six million, four hundred forty-two thousand, six hundred five".