2153215055331 has 8 divisors (see below), whose sum is σ = 3189948230160. Its totient is φ = 1435476703536.

The previous prime is 2153215055267. The next prime is 2153215055333. The reversal of 2153215055331 is 1335505123512.

2153215055331 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 21 + 50 + 553 + 31 = 666.

It is not a de Polignac number, because 2153215055331 - 2⁶ = 2153215055267 is a prime.

It is a super-2 number, since 2×2153215055331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2153215055333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39874352850 + ... + 39874352903.

It is an arithmetic number, because the mean of its divisors is an integer number (398743528770).

Almost surely, 2^{2153215055331} is an apocalyptic number.

2153215055331 is a deficient number, since it is larger than the sum of its proper divisors (1036733174829).

2153215055331 is an equidigital number, since it uses as much as digits as its factorization.

2153215055331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79748705762 (or 79748705756 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The spelling of 2153215055331 in words is "two trillion, one hundred fifty-three billion, two hundred fifteen million, fifty-five thousand, three hundred thirty-one".