3621165650 has 12 divisors (see below), whose sum is σ = 6735368202. Its totient is φ = 1448466240.

The previous prime is 3621165629. The next prime is 3621165659. The reversal of 3621165650 is 565611263.

It can be written as a sum of positive squares in 3 ways, for example, as 3523965769 + 97199881 = 59363^2 + 9859^2 .

It is a super-2 number, since 2×3621165650² = 26225681329479845000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3621165650.

It is not an unprimeable number, because it can be changed into a prime (3621165659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36211607 + ... + 36211706.

Almost surely, 2^3621165650 is an apocalyptic number.

3621165650 is a deficient number, since it is larger than the sum of its proper divisors (3114202552).

3621165650 is a wasteful number, since it uses less digits than its factorization.

3621165650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72423325 (or 72423320 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 3621165650 is about 60176.1219255611. The cubic root of 3621165650 is about 1535.6165970259.

The spelling of 3621165650 in words is "three billion, six hundred twenty-one million, one hundred sixty-five thousand, six hundred fifty".