2151636036 has 96 divisors (see below), whose sum is σ = 5578191360. Its totient is φ = 645404320.

The previous prime is 2151636029. The next prime is 2151636037. The reversal of 2151636036 is 6306361512.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 2151635988 and 2151636006.

It is not an unprimeable number, because it can be changed into a prime (2151636037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1708375 + ... + 1709633.

It is an arithmetic number, because the mean of its divisors is an integer number (58106160).

Almost surely, 2^2151636036 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 2151636036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2789095680).

2151636036 is an abundant number, since it is smaller than the sum of its proper divisors (3426555324).

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

2151636036 is a wasteful number, since it uses less digits than its factorization.

2151636036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 2151636036 is about 46385.7309525246. The cubic root of 2151636036 is about 1290.9901730097.

Adding to 2151636036 its reverse (6306361512), we get a palindrome (8457997548).

The spelling of 2151636036 in words is "two billion, one hundred fifty-one million, six hundred thirty-six thousand, thirty-six".