133208919969 has 4 divisors (see below), whose sum is σ = 177611893296. Its totient is φ = 88805946644.

The previous prime is 133208919959. The next prime is 133208919983. The reversal of 133208919969 is 969919802331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133208919969 - 2²⁴ = 133192142753 is a prime.

It is a super-2 number, since 2×133208919969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133208919919) 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, 22201486659 + ... + 22201486664.

It is an arithmetic number, because the mean of its divisors is an integer number (44402973324).

Almost surely, 2^133208919969 is an apocalyptic number.

It is an amenable number.

133208919969 is a deficient number, since it is larger than the sum of its proper divisors (44402973327).

133208919969 is an equidigital number, since it uses as much as digits as its factorization.

133208919969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44402973326.

The product of its (nonzero) digits is 5668704, while the sum is 60.

The spelling of 133208919969 in words is "one hundred thirty-three billion, two hundred eight million, nine hundred nineteen thousand, nine hundred sixty-nine".