133220320040 has 64 divisors (see below), whose sum is σ = 302866257600. Its totient is φ = 52734419968.

The previous prime is 133220320033. The next prime is 133220320063. The reversal of 133220320040 is 40023022331.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 133220319994 and 133220320021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4165631 + ... + 4197489.

It is an arithmetic number, because the mean of its divisors is an integer number (4732285275).

Almost surely, 2^133220320040 is an apocalyptic number.

133220320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133220320040 is an abundant number, since it is smaller than the sum of its proper divisors (169645937560).

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

133220320040 is a wasteful number, since it uses less digits than its factorization.

133220320040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32954 (or 32950 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 133220320040 its reverse (40023022331), we get a palindrome (173243342371).

The spelling of 133220320040 in words is "one hundred thirty-three billion, two hundred twenty million, three hundred twenty thousand, forty".