133526225556 has 18 divisors (see below), whose sum is σ = 337524625802. Its totient is φ = 44508741840.

The previous prime is 133526225551. The next prime is 133526225621. The reversal of 133526225556 is 655522625331.

It is a happy number.

133526225556 is a `hidden beast` number, since 1 + 3 + 3 + 526 + 22 + 55 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 98225828100 + 35300397456 = 313410^2 + 187884^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×133526225556² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133526225551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1854530875 + ... + 1854530946.

Almost surely, 2^133526225556 is an apocalyptic number.

It is an amenable number.

133526225556 is an abundant number, since it is smaller than the sum of its proper divisors (203998400246).

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

133526225556 is a wasteful number, since it uses less digits than its factorization.

133526225556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709061831 (or 3709061826 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 45.

The spelling of 133526225556 in words is "one hundred thirty-three billion, five hundred twenty-six million, two hundred twenty-five thousand, five hundred fifty-six".