2158133942880 has 144 divisors (see below), whose sum is σ = 7684833592800. Its totient is φ = 550480533504.

The previous prime is 2158133942831. The next prime is 2158133942891. The reversal of 2158133942880 is 882493318512.

2158133942880 is a `hidden beast` number, since 2 + 1 + 5 + 8 + 133 + 9 + 428 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×2158133942880³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32547405 + ... + 32613644.

It is an arithmetic number, because the mean of its divisors is an integer number (53366899950).

Almost surely, 2^{2158133942880} is an apocalyptic number.

2158133942880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2158133942880 is an abundant number, since it is smaller than the sum of its proper divisors (5526699649920).

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

2158133942880 is a wasteful number, since it uses less digits than its factorization.

2158133942880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65161093 (or 65161082 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

It can be divided in two parts, 2158133 and 942880, that added together give a palindrome (3101013).

The spelling of 2158133942880 in words is "two trillion, one hundred fifty-eight billion, one hundred thirty-three million, nine hundred forty-two thousand, eight hundred eighty".