133556280087 has 16 divisors (see below), whose sum is σ = 179138373120. Its totient is φ = 88506049632.

The previous prime is 133556280041. The next prime is 133556280097. The reversal of 133556280087 is 780082655331.

It is not a de Polignac number, because 133556280087 - 2⁶ = 133556280023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133556280037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3096214 + ... + 3139052.

It is an arithmetic number, because the mean of its divisors is an integer number (11196148320).

Almost surely, 2^133556280087 is an apocalyptic number.

133556280087 is a deficient number, since it is larger than the sum of its proper divisors (45582093033).

133556280087 is a wasteful number, since it uses less digits than its factorization.

133556280087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49022.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 133556280087 in words is "one hundred thirty-three billion, five hundred fifty-six million, two hundred eighty thousand, eighty-seven".