133044241561 has 16 divisors (see below), whose sum is σ = 168145584768. Its totient is φ = 102250684800.

The previous prime is 133044241559. The next prime is 133044241567. The reversal of 133044241561 is 165142440331.

It is not a de Polignac number, because 133044241561 - 2¹ = 133044241559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133044241567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11828950 + ... + 11840191.

It is an arithmetic number, because the mean of its divisors is an integer number (10509099048).

Almost surely, 2^133044241561 is an apocalyptic number.

133044241561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133044241561 is a deficient number, since it is larger than the sum of its proper divisors (35101343207).

133044241561 is a wasteful number, since it uses less digits than its factorization.

133044241561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23669232.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 133044241561 its reverse (165142440331), we get a palindrome (298186681892).

The spelling of 133044241561 in words is "one hundred thirty-three billion, forty-four million, two hundred forty-one thousand, five hundred sixty-one".