133542152220 has 24 divisors (see below), whose sum is σ = 373918026384. Its totient is φ = 35611240576.

The previous prime is 133542152207. The next prime is 133542152239. The reversal of 133542152220 is 22251245331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112851209 + ... + 1112851328.

It is an arithmetic number, because the mean of its divisors is an integer number (15579917766).

Almost surely, 2^133542152220 is an apocalyptic number.

133542152220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133542152220 is an abundant number, since it is smaller than the sum of its proper divisors (240375874164).

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

133542152220 is a wasteful number, since it uses less digits than its factorization.

133542152220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225702549 (or 2225702547 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 133542152220 its reverse (22251245331), we get a palindrome (155793397551).

The spelling of 133542152220 in words is "one hundred thirty-three billion, five hundred forty-two million, one hundred fifty-two thousand, two hundred twenty".