2156153020 has 24 divisors (see below), whose sum is σ = 5174767584. Its totient is φ = 739252416.

The previous prime is 2156153011. The next prime is 2156153047. The reversal of 2156153020 is 203516512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700407 + ... + 7700686.

It is an arithmetic number, because the mean of its divisors is an integer number (215615316).

Almost surely, 2^2156153020 is an apocalyptic number.

2156153020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2156153020 is an abundant number, since it is smaller than the sum of its proper divisors (3018614564).

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

2156153020 is a wasteful number, since it uses less digits than its factorization.

2156153020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15401109 (or 15401107 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2156153020 is about 46434.3947952377. The cubic root of 2156153020 is about 1291.8929443513.

Adding to 2156153020 its reverse (203516512), we get a palindrome (2359669532).

The spelling of 2156153020 in words is "two billion, one hundred fifty-six million, one hundred fifty-three thousand, twenty".