133381525980 has 96 divisors (see below), whose sum is σ = 374921628480. Its totient is φ = 35430277120.

The previous prime is 133381525969. The next prime is 133381526011. The reversal of 133381525980 is 89525183331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17006860 + ... + 17014700.

It is an arithmetic number, because the mean of its divisors is an integer number (3905433630).

Almost surely, 2^133381525980 is an apocalyptic number.

133381525980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133381525980 is an abundant number, since it is smaller than the sum of its proper divisors (241540102500).

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

133381525980 is a wasteful number, since it uses less digits than its factorization.

133381525980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8919 (or 8917 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 133381525980 in words is "one hundred thirty-three billion, three hundred eighty-one million, five hundred twenty-five thousand, nine hundred eighty".