2159995632 has 80 divisors (see below), whose sum is σ = 5788692000. Its totient is φ = 693210112.

The previous prime is 2159995627. The next prime is 2159995633. The reversal of 2159995632 is 2365999512.

2159995632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2159995632² = 9331162260518158848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159995633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539494 + ... + 543482.

It is an arithmetic number, because the mean of its divisors is an integer number (72358650).

Almost surely, 2^2159995632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159995632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2894346000).

2159995632 is an abundant number, since it is smaller than the sum of its proper divisors (3628696368).

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

2159995632 is a wasteful number, since it uses less digits than its factorization.

2159995632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4418 (or 4412 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 51.

The square root of 2159995632 is about 46475.7531622673. The cubic root of 2159995632 is about 1292.6599426694.

The spelling of 2159995632 in words is "two billion, one hundred fifty-nine million, nine hundred ninety-five thousand, six hundred thirty-two".