1995601536 has 192 divisors, whose sum is σ = 6034785120. Its totient is φ = 656335872.

The previous prime is 1995601481. The next prime is 1995601547. The reversal of 1995601536 is 6351065991.

1995601536 is a `hidden beast` number, since 1 + 9 + 9 + 5 + 601 + 5 + 36 = 666.

1995601536 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 1995601491 and 1995601500.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2581246 + ... + 2582018.

Almost surely, 2^1995601536 is an apocalyptic number.

1995601536 is a gapful number since it is divisible by the number (16) 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 1995601536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3017392560).

1995601536 is an abundant number, since it is smaller than the sum of its proper divisors (4039183584).

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

1995601536 is an frugal number, since it uses more digits than its factorization.

1995601536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1995601536 is about 44672.1561601855. The cubic root of 1995601536 is about 1258.9967524184.

The spelling of 1995601536 in words is "one billion, nine hundred ninety-five million, six hundred one thousand, five hundred thirty-six".