133240641563 has 4 divisors (see below), whose sum is σ = 134463032880. Its totient is φ = 132018250248.

The previous prime is 133240641509. The next prime is 133240641619. The reversal of 133240641563 is 365146042331.

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

It is a cyclic number.

It is not a de Polignac number, because 133240641563 - 2⁸ = 133240641307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133240643563) 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, 611195495 + ... + 611195712.

It is an arithmetic number, because the mean of its divisors is an integer number (33615758220).

Almost surely, 2^133240641563 is an apocalyptic number.

133240641563 is a deficient number, since it is larger than the sum of its proper divisors (1222391317).

133240641563 is a wasteful number, since it uses less digits than its factorization.

133240641563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222391316.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 133240641563 its reverse (365146042331), we get a palindrome (498386683894).

The spelling of 133240641563 in words is "one hundred thirty-three billion, two hundred forty million, six hundred forty-one thousand, five hundred sixty-three".