2159885520 has 160 divisors (see below), whose sum is σ = 8011987200. Its totient is φ = 531657216.

The previous prime is 2159885509. The next prime is 2159885531. The reversal of 2159885520 is 255889512.

It is a happy number.

2159885520 is a `hidden beast` number, since 2 + 1 + 5 + 98 + 8 + 552 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2159885509) and next prime (2159885531).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10380 + ... + 66539.

It is an arithmetic number, because the mean of its divisors is an integer number (50074920).

Almost surely, 2^2159885520 is an apocalyptic number.

2159885520 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 2159885520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4005993600).

2159885520 is an abundant number, since it is smaller than the sum of its proper divisors (5852101680).

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

2159885520 is a wasteful number, since it uses less digits than its factorization.

2159885520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76954 (or 76942 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 2159885520 is about 46474.5685294657. The cubic root of 2159885520 is about 1292.6379766080.

The spelling of 2159885520 in words is "two billion, one hundred fifty-nine million, eight hundred eighty-five thousand, five hundred twenty".