3653064720 has 240 divisors, whose sum is σ = 13076698752. Its totient is φ = 910725120.

The previous prime is 3653064683. The next prime is 3653064739. The reversal of 3653064720 is 274603563.

3653064720 is a `hidden beast` number, since 3 + 6 + 5 + 3 + 0 + 647 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1994205 + ... + 1996035.

Almost surely, 2^3653064720 is an apocalyptic number.

3653064720 is a gapful number since it is divisible by the number (30) 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 3653064720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6538349376).

3653064720 is an abundant number, since it is smaller than the sum of its proper divisors (9423634032).

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

3653064720 is a wasteful number, since it uses less digits than its factorization.

3653064720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 3653064720 is about 60440.5883492211. The cubic root of 3653064720 is about 1540.1125346448.

The spelling of 3653064720 in words is "three billion, six hundred fifty-three million, sixty-four thousand, seven hundred twenty".