2155468460 has 48 divisors (see below), whose sum is σ = 4766731200. Its totient is φ = 817115904.

The previous prime is 2155468451. The next prime is 2155468493. The reversal of 2155468460 is 648645512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28646 + ... + 71634.

It is an arithmetic number, because the mean of its divisors is an integer number (99306900).

Almost surely, 2^2155468460 is an apocalyptic number.

2155468460 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 2155468460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2383365600).

2155468460 is an abundant number, since it is smaller than the sum of its proper divisors (2611262740).

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

2155468460 is a wasteful number, since it uses less digits than its factorization.

2155468460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43130 (or 43128 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 2155468460 is about 46427.0229500019. The cubic root of 2155468460 is about 1291.7562082544.

The spelling of 2155468460 in words is "two billion, one hundred fifty-five million, four hundred sixty-eight thousand, four hundred sixty".