6121679660 has 48 divisors (see below), whose sum is σ = 13180128192. Its totient is φ = 2386944000.

The previous prime is 6121679657. The next prime is 6121679693. The reversal of 6121679660 is 669761216.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1310489 + ... + 1315151.

It is an arithmetic number, because the mean of its divisors is an integer number (274586004).

Almost surely, 2^6121679660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6121679660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6590064096).

6121679660 is an abundant number, since it is smaller than the sum of its proper divisors (7058448532).

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

6121679660 is a wasteful number, since it uses less digits than its factorization.

6121679660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6314 (or 6312 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 6121679660 is about 78241.1634627195. The cubic root of 6121679660 is about 1829.3221792211.

The spelling of 6121679660 in words is "six billion, one hundred twenty-one million, six hundred seventy-nine thousand, six hundred sixty".