3636748656 has 90 divisors (see below), whose sum is σ = 10741868280. Its totient is φ = 1148430528.

The previous prime is 3636748649. The next prime is 3636748747. The reversal of 3636748656 is 6568476363.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 17005 + ... + 86963.

It is an arithmetic number, because the mean of its divisors is an integer number (119354092).

Almost surely, 2^3636748656 is an apocalyptic number.

3636748656 is a gapful number since it is divisible by the number (36) 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 3636748656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5370934140).

3636748656 is an abundant number, since it is smaller than the sum of its proper divisors (7105119624).

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

3636748656 is a wasteful number, since it uses less digits than its factorization.

3636748656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70011 (or 69983 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The square root of 3636748656 is about 60305.4612452305. The cubic root of 3636748656 is about 1537.8161906909.

The spelling of 3636748656 in words is "three billion, six hundred thirty-six million, seven hundred forty-eight thousand, six hundred fifty-six".