133564309900 has 36 divisors (see below), whose sum is σ = 331239490288. Its totient is φ = 45793477440.

The previous prime is 133564309849. The next prime is 133564309909. The reversal of 133564309900 is 9903465331.

It is not an unprimeable number, because it can be changed into a prime (133564309909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95402379 + ... + 95403778.

Almost surely, 2^133564309900 is an apocalyptic number.

133564309900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133564309900 is an abundant number, since it is smaller than the sum of its proper divisors (197675180388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133564309900 is a wasteful number, since it uses less digits than its factorization.

133564309900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190806178 (or 190806171 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 133564309900 in words is "one hundred thirty-three billion, five hundred sixty-four million, three hundred nine thousand, nine hundred".