6123610661 has 16 divisors (see below), whose sum is σ = 7092733440. Its totient is φ = 5178176640.

The previous prime is 6123610657. The next prime is 6123610673. The reversal of 6123610661 is 1660163216.

It is not a de Polignac number, because 6123610661 - 2² = 6123610657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6123610631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815255 + ... + 822731.

It is an arithmetic number, because the mean of its divisors is an integer number (443295840).

Almost surely, 2^6123610661 is an apocalyptic number.

It is an amenable number.

6123610661 is a deficient number, since it is larger than the sum of its proper divisors (969122779).

6123610661 is a wasteful number, since it uses less digits than its factorization.

6123610661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 6123610661 is about 78253.5025478093. The cubic root of 6123610661 is about 1829.5145039751.

Adding to 6123610661 its reverse (1660163216), we get a palindrome (7783773877).

The spelling of 6123610661 in words is "six billion, one hundred twenty-three million, six hundred ten thousand, six hundred sixty-one".