133402021620 has 192 divisors, whose sum is σ = 441176064000. Its totient is φ = 29473528320.

The previous prime is 133402021579. The next prime is 133402021691. The reversal of 133402021620 is 26120204331.

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, 11959806 + ... + 11970954.

It is an arithmetic number, because the mean of its divisors is an integer number (2297792000).

Almost surely, 2^133402021620 is an apocalyptic number.

133402021620 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 133402021620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220588032000).

133402021620 is an abundant number, since it is smaller than the sum of its proper divisors (307774042380).

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

133402021620 is a wasteful number, since it uses less digits than its factorization.

133402021620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118 (or 12116 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 133402021620 its reverse (26120204331), we get a palindrome (159522225951).

The spelling of 133402021620 in words is "one hundred thirty-three billion, four hundred two million, twenty-one thousand, six hundred twenty".