133130455640 has 256 divisors, whose sum is σ = 390133739520. Its totient is φ = 39732295680.

The previous prime is 133130455621. The next prime is 133130455669. The reversal of 133130455640 is 46554031331.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 133130455640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5932922 + ... + 5955318.

It is an arithmetic number, because the mean of its divisors is an integer number (1523959920).

Almost surely, 2^133130455640 is an apocalyptic number.

133130455640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133130455640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195066869760).

133130455640 is an abundant number, since it is smaller than the sum of its proper divisors (257003283880).

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

133130455640 is a wasteful number, since it uses less digits than its factorization.

133130455640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22522 (or 22518 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 133130455640 its reverse (46554031331), we get a palindrome (179684486971).

The spelling of 133130455640 in words is "one hundred thirty-three billion, one hundred thirty million, four hundred fifty-five thousand, six hundred forty".