1036603656 has 160 divisors (see below), whose sum is σ = 3245568480. Its totient is φ = 306374400.

The previous prime is 1036603651. The next prime is 1036603657. The reversal of 1036603656 is 6563066301.

It is a happy number.

1036603656 is a `hidden beast` number, since 10 + 36 + 603 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1036603656.

It is not an unprimeable number, because it can be changed into a prime (1036603651) 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 39 ways as a sum of consecutive naturals, for example, 290475 + ... + 294021.

It is an arithmetic number, because the mean of its divisors is an integer number (20284803).

Almost surely, 2^1036603656 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 1036603656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622784240).

1036603656 is an abundant number, since it is smaller than the sum of its proper divisors (2208964824).

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

1036603656 is a wasteful number, since it uses less digits than its factorization.

1036603656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 1036603656 is about 32196.3298529506. The cubic root of 1036603656 is about 1012.0553043042.

Adding to 1036603656 its reverse (6563066301), we get a palindrome (7599669957).

The spelling of 1036603656 in words is "one billion, thirty-six million, six hundred three thousand, six hundred fifty-six".