2150995120128 has 156 divisors (see below), whose sum is σ = 6277291685028. Its totient is φ = 709605457920.

The previous prime is 2150995120091. The next prime is 2150995120237. The reversal of 2150995120128 is 8210215990512.

It is a happy number.

2150995120128 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 9 + 9 + 512 + 0 + 128 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 470881419264 + 1680113700864 = 686208^2 + 1296192^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3275038 + ... + 3876578.

It is an arithmetic number, because the mean of its divisors is an integer number (40239049263).

Almost surely, 2^{2150995120128} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150995120128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3138645842514).

2150995120128 is an abundant number, since it is smaller than the sum of its proper divisors (4126296564900).

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

2150995120128 is an equidigital number, since it uses as much as digits as its factorization.

2150995120128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601668 (or 601643 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 2150995120128 in words is "two trillion, one hundred fifty billion, nine hundred ninety-five million, one hundred twenty thousand, one hundred twenty-eight".