133199719899 has 4 divisors (see below), whose sum is σ = 177599626536. Its totient is φ = 88799813264.

The previous prime is 133199719883. The next prime is 133199719909. The reversal of 133199719899 is 998917991331.

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 133199719899 - 2⁴ = 133199719883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133199729899) 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, 22199953314 + ... + 22199953319.

It is an arithmetic number, because the mean of its divisors is an integer number (44399906634).

Almost surely, 2^133199719899 is an apocalyptic number.

133199719899 is a deficient number, since it is larger than the sum of its proper divisors (44399906637).

133199719899 is an equidigital number, since it uses as much as digits as its factorization.

133199719899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44399906636.

The product of its digits is 29760696, while the sum is 69.

The spelling of 133199719899 in words is "one hundred thirty-three billion, one hundred ninety-nine million, seven hundred nineteen thousand, eight hundred ninety-nine".