133105631655 has 16 divisors (see below), whose sum is σ = 215361923040. Its totient is φ = 70192032768.

The previous prime is 133105631653. The next prime is 133105631683. The reversal of 133105631655 is 556136501331.

It is not a de Polignac number, because 133105631655 - 2¹ = 133105631653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133105631653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49850962 + ... + 49853631.

It is an arithmetic number, because the mean of its divisors is an integer number (13460120190).

Almost surely, 2^133105631655 is an apocalyptic number.

133105631655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133105631655 is a deficient number, since it is larger than the sum of its proper divisors (82256291385).

133105631655 is an equidigital number, since it uses as much as digits as its factorization.

133105631655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99704690.

The product of its (nonzero) digits is 121500, while the sum is 39.

The spelling of 133105631655 in words is "one hundred thirty-three billion, one hundred five million, six hundred thirty-one thousand, six hundred fifty-five".