2081158128 has 120 divisors (see below), whose sum is σ = 6945888768. Its totient is φ = 568757376.

The previous prime is 2081158127. The next prime is 2081158147. The reversal of 2081158128 is 8218511802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2081158092 and 2081158101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081158127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21700 + ... + 68067.

Almost surely, 2^2081158128 is an apocalyptic number.

2081158128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2081158128 is an abundant number, since it is smaller than the sum of its proper divisors (4864730640).

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

2081158128 is a wasteful number, since it uses less digits than its factorization.

2081158128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89811 (or 89802 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 2081158128 is about 45619.7120552070. The cubic root of 2081158128 is about 1276.7377311012.

The spelling of 2081158128 in words is "two billion, eighty-one million, one hundred fifty-eight thousand, one hundred twenty-eight".