6621560630 has 32 divisors (see below), whose sum is σ = 12471867648. Its totient is φ = 2528064000.

The previous prime is 6621560593. The next prime is 6621560657. The reversal of 6621560630 is 360651266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123671 + ... + 168930.

It is an arithmetic number, because the mean of its divisors is an integer number (389745864).

Almost surely, 2^6621560630 is an apocalyptic number.

6621560630 is a deficient number, since it is larger than the sum of its proper divisors (5850307018).

6621560630 is a wasteful number, since it uses less digits than its factorization.

6621560630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292712.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 6621560630 is about 81372.9723556907. The cubic root of 6621560630 is about 1877.8178081078.

The spelling of 6621560630 in words is "six billion, six hundred twenty-one million, five hundred sixty thousand, six hundred thirty".