4553720640 has 896 divisors, whose sum is σ = 20084613120. Its totient is φ = 947552256.

The previous prime is 4553720629. The next prime is 4553720641. The reversal of 4553720640 is 460273554.

4553720640 is a `hidden beast` number, since 4 + 5 + 5 + 3 + 7 + 2 + 0 + 640 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 4553720595 and 4553720604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4553720641) 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 127 ways as a sum of consecutive naturals, for example, 44210829 + ... + 44210931.

Almost surely, 2^4553720640 is an apocalyptic number.

4553720640 is a gapful number since it is divisible by the number (40) 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 4553720640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10042306560).

4553720640 is an abundant number, since it is smaller than the sum of its proper divisors (15530892480).

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

4553720640 is a wasteful number, since it uses less digits than its factorization.

4553720640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 4553720640 is about 67481.2613989988. The cubic root of 4553720640 is about 1657.5073442069.

The spelling of 4553720640 in words is "four billion, five hundred fifty-three million, seven hundred twenty thousand, six hundred forty".