3645563650 has 24 divisors (see below), whose sum is σ = 6938444304. Its totient is φ = 1424312400.

The previous prime is 3645563633. The next prime is 3645563653. The reversal of 3645563650 is 563655463.

It is a hoax number, since the sum of its digits (43) 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 (43).

It is a junction number, because it is equal to n+sod(n) for n = 3645563597 and 3645563606.

It is not an unprimeable number, because it can be changed into a prime (3645563653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 845656 + ... + 849955.

It is an arithmetic number, because the mean of its divisors is an integer number (289101846).

Almost surely, 2^3645563650 is an apocalyptic number.

3645563650 is a deficient number, since it is larger than the sum of its proper divisors (3292880654).

3645563650 is a wasteful number, since it uses less digits than its factorization.

3645563650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695666 (or 1695661 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 43.

The square root of 3645563650 is about 60378.5032109939. The cubic root of 3645563650 is about 1539.0576753231.

The spelling of 3645563650 in words is "three billion, six hundred forty-five million, five hundred sixty-three thousand, six hundred fifty".