133523415152020 has 48 divisors (see below), whose sum is σ = 280739869836048. Its totient is φ = 53344509926400.

The previous prime is 133523415152003. The next prime is 133523415152051. The reversal of 133523415152020 is 20251514325331.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 16330925651716 + 117192489500304 = 4041154^2 + 10825548^2 .

It is a congruent number.

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, 54034552 + ... + 56451568.

It is an arithmetic number, because the mean of its divisors is an integer number (5848747288251).

Almost surely, 2^{133523415152020} is an apocalyptic number.

133523415152020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133523415152020 is an abundant number, since it is smaller than the sum of its proper divisors (147216454684028).

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

133523415152020 is a wasteful number, since it uses less digits than its factorization.

133523415152020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420380 (or 2420378 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 133523415152020 its reverse (20251514325331), we get a palindrome (153774929477351).

The spelling of 133523415152020 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, four hundred fifteen million, one hundred fifty-two thousand, twenty".