6121660624 has 10 divisors (see below), whose sum is σ = 11860717490. Its totient is φ = 3060830304.

The previous prime is 6121660609. The next prime is 6121660637. The reversal of 6121660624 is 4260661216.

It can be written as a sum of positive squares in only one way, i.e., 6110236224 + 11424400 = 78168^2 + 3380^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6121660624.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 191301879 + ... + 191301910.

It is an arithmetic number, because the mean of its divisors is an integer number (1186071749).

Almost surely, 2^6121660624 is an apocalyptic number.

It is an amenable number.

6121660624 is a deficient number, since it is larger than the sum of its proper divisors (5739056866).

6121660624 is a wasteful number, since it uses less digits than its factorization.

6121660624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382603797 (or 382603791 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 6121660624 is about 78241.0418131047. The cubic root of 6121660624 is about 1829.3202830632.

The spelling of 6121660624 in words is "six billion, one hundred twenty-one million, six hundred sixty thousand, six hundred twenty-four".