3650621656 has 32 divisors (see below), whose sum is σ = 7483392000. Its totient is φ = 1655771040.

The previous prime is 3650621651. The next prime is 3650621699. The reversal of 3650621656 is 6561260563.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3650621651) 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 7 ways as a sum of consecutive naturals, for example, 4056 + ... + 85543.

It is an arithmetic number, because the mean of its divisors is an integer number (233856000).

Almost surely, 2^3650621656 is an apocalyptic number.

It is an amenable number.

3650621656 is an abundant number, since it is smaller than the sum of its proper divisors (3832770344).

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

3650621656 is a wasteful number, since it uses less digits than its factorization.

3650621656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90079 (or 90075 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 3650621656 is about 60420.3745105904. The cubic root of 3650621656 is about 1539.7691305115.

The spelling of 3650621656 in words is "three billion, six hundred fifty million, six hundred twenty-one thousand, six hundred fifty-six".