1601532036 has 36 divisors (see below), whose sum is σ = 4359727372. Its totient is φ = 492778944.

The previous prime is 1601532011. The next prime is 1601532109. The reversal of 1601532036 is 6302351061.

1601532036 is a `hidden beast` number, since 1 + 601 + 5 + 3 + 20 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 81000000 + 1520532036 = 9000^2 + 38994^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×1601532036³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1710571 + ... + 1711506.

Almost surely, 2^1601532036 is an apocalyptic number.

It is an amenable number.

1601532036 is an abundant number, since it is smaller than the sum of its proper divisors (2758195336).

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

1601532036 is a wasteful number, since it uses less digits than its factorization.

1601532036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422100 (or 3422095 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1601532036 is about 40019.1458679468. The cubic root of 1601532036 is about 1169.9802845681.

Adding to 1601532036 its reverse (6302351061), we get a palindrome (7903883097).

The spelling of 1601532036 in words is "one billion, six hundred one million, five hundred thirty-two thousand, thirty-six".