133432555400 has 72 divisors (see below), whose sum is σ = 321297589470. Its totient is φ = 51532508160.

The previous prime is 133432555391. The next prime is 133432555447. The reversal of 133432555400 is 4555234331.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 29125518244 + 104307037156 = 170662^2 + 322966^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 228449 + ... + 564848.

Almost surely, 2^133432555400 is an apocalyptic number.

133432555400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133432555400 is an abundant number, since it is smaller than the sum of its proper divisors (187865034070).

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

133432555400 is a wasteful number, since it uses less digits than its factorization.

133432555400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793371 (or 793333 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 133432555400 its reverse (4555234331), we get a palindrome (137987789731).

The spelling of 133432555400 in words is "one hundred thirty-three billion, four hundred thirty-two million, five hundred fifty-five thousand, four hundred".