6121660 has 12 divisors (see below), whose sum is σ = 12855528. Its totient is φ = 2448656.

The previous prime is 6121651. The next prime is 6121673. The reversal of 6121660 is 661216.

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 in 3 ways as a sum of consecutive naturals, for example, 153022 + ... + 153061.

It is an arithmetic number, because the mean of its divisors is an integer number (1071294).

Almost surely, 2^6121660 is an apocalyptic number.

It is an amenable number.

6121660 is an abundant number, since it is smaller than the sum of its proper divisors (6733868).

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

6121660 is a wasteful number, since it uses less digits than its factorization.

6121660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306092 (or 306090 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 6121660 is about 2474.1988602374. The cubic root of 6121660 is about 182.9320220907.

Adding to 6121660 its reverse (661216), we get a palindrome (6782876).

The spelling of 6121660 in words is "six million, one hundred twenty-one thousand, six hundred sixty".