133535963820 has 48 divisors (see below), whose sum is σ = 427315085568. Its totient is φ = 30522505920.

The previous prime is 133535963819. The next prime is 133535963843. The reversal of 133535963820 is 28369535331.

It is a self number, because there is not a number n which added to its sum of digits gives 133535963820.

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, 158970966 + ... + 158971805.

It is an arithmetic number, because the mean of its divisors is an integer number (8902397616).

Almost surely, 2^133535963820 is an apocalyptic number.

133535963820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133535963820 is an abundant number, since it is smaller than the sum of its proper divisors (293779121748).

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

133535963820 is a wasteful number, since it uses less digits than its factorization.

133535963820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317942790 (or 317942788 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 133535963820 in words is "one hundred thirty-three billion, five hundred thirty-five million, nine hundred sixty-three thousand, eight hundred twenty".