133021010631655 has 16 divisors (see below), whose sum is σ = 163545598206144. Its totient is φ = 103804078129920.

The previous prime is 133021010631629. The next prime is 133021010631679. The reversal of 133021010631655 is 556136010120331.

It is not a de Polignac number, because 133021010631655 - 2¹³ = 133021010623463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52504587 + ... + 54979756.

It is an arithmetic number, because the mean of its divisors is an integer number (10221599887884).

Almost surely, 2^{133021010631655} is an apocalyptic number.

133021010631655 is a deficient number, since it is larger than the sum of its proper divisors (30524587574489).

133021010631655 is a wasteful number, since it uses less digits than its factorization.

133021010631655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107490426.

The product of its (nonzero) digits is 48600, while the sum is 37.

Adding to 133021010631655 its reverse (556136010120331), we get a palindrome (689157020751986).

The spelling of 133021010631655 in words is "one hundred thirty-three trillion, twenty-one billion, ten million, six hundred thirty-one thousand, six hundred fifty-five".