6039149661 has 12 divisors (see below), whose sum is σ = 8809585980. Its totient is φ = 3986236800.

The previous prime is 6039149659. The next prime is 6039149681. The reversal of 6039149661 is 1669419306.

It can be written as a sum of positive squares in 2 ways, for example, as 3741768900 + 2297380761 = 61170^2 + 47931^2 .

It is not a de Polignac number, because 6039149661 - 2¹ = 6039149659 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6039149651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3320956 + ... + 3322773.

It is an arithmetic number, because the mean of its divisors is an integer number (734132165).

Almost surely, 2^6039149661 is an apocalyptic number.

It is an amenable number.

6039149661 is a deficient number, since it is larger than the sum of its proper divisors (2770436319).

6039149661 is a wasteful number, since it uses less digits than its factorization.

6039149661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643836 (or 6643833 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 6039149661 is about 77711.9660091031. The cubic root of 6039149661 is about 1821.0642309571.

The spelling of 6039149661 in words is "six billion, thirty-nine million, one hundred forty-nine thousand, six hundred sixty-one".