133931416240 has 20 divisors (see below), whose sum is σ = 311390542944. Its totient is φ = 53572566464.

The previous prime is 133931416193. The next prime is 133931416249. The reversal of 133931416240 is 42614139331.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 133931416240.

It is not an unprimeable number, because it can be changed into a prime (133931416249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837071272 + ... + 837071431.

Almost surely, 2^133931416240 is an apocalyptic number.

133931416240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133931416240 is an abundant number, since it is smaller than the sum of its proper divisors (177459126704).

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

133931416240 is a wasteful number, since it uses less digits than its factorization.

133931416240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674142716 (or 1674142710 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 133931416240 in words is "one hundred thirty-three billion, nine hundred thirty-one million, four hundred sixteen thousand, two hundred forty".