133564309899 has 32 divisors (see below), whose sum is σ = 189831102720. Its totient is φ = 83290042368.

The previous prime is 133564309849. The next prime is 133564309909. The reversal of 133564309899 is 998903465331.

It is not a de Polignac number, because 133564309899 - 2¹³ = 133564301707 is a prime.

It is a super-2 number, since 2×133564309899² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133564309829) 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, 8853627 + ... + 8868699.

It is an arithmetic number, because the mean of its divisors is an integer number (5932221960).

Almost surely, 2^133564309899 is an apocalyptic number.

133564309899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

133564309899 is a deficient number, since it is larger than the sum of its proper divisors (56266792821).

133564309899 is a wasteful number, since it uses less digits than its factorization.

133564309899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17051.

The product of its (nonzero) digits is 18895680, while the sum is 60.

The spelling of 133564309899 in words is "one hundred thirty-three billion, five hundred sixty-four million, three hundred nine thousand, eight hundred ninety-nine".