2158662000 has 160 divisors (see below), whose sum is σ = 7592442624. Its totient is φ = 523296000.

The previous prime is 2158661927. The next prime is 2158662001. The reversal of 2158662000 is 2668512.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158662001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49647 + ... + 82353.

Almost surely, 2^2158662000 is an apocalyptic number.

2158662000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158662000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3796221312).

2158662000 is an abundant number, since it is smaller than the sum of its proper divisors (5433780624).

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

2158662000 is a wasteful number, since it uses less digits than its factorization.

2158662000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32744 (or 32728 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2158662000 is about 46461.4033365330. The cubic root of 2158662000 is about 1292.3938483681.

The spelling of 2158662000 in words is "two billion, one hundred fifty-eight million, six hundred sixty-two thousand".