133572605436 has 72 divisors (see below), whose sum is σ = 341033687904. Its totient is φ = 44077219200.

The previous prime is 133572605407. The next prime is 133572605521. The reversal of 133572605436 is 634506275331.

It is a happy number.

133572605436 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 7 + 2 + 605 + 4 + 36 = 666.

It is a super-2 number, since 2×133572605436² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133572605391 and 133572605400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21195486 + ... + 21201786.

Almost surely, 2^133572605436 is an apocalyptic number.

It is an amenable number.

133572605436 is an abundant number, since it is smaller than the sum of its proper divisors (207461082468).

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

133572605436 is a wasteful number, since it uses less digits than its factorization.

133572605436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12131 (or 12126 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 45.

The spelling of 133572605436 in words is "one hundred thirty-three billion, five hundred seventy-two million, six hundred five thousand, four hundred thirty-six".