5615551606 has 36 divisors (see below), whose sum is σ = 10125013284. Its totient is φ = 2328991560.

The previous prime is 5615551597. The next prime is 5615551609. The reversal of 5615551606 is 6061555165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5615551609) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 64365 + ... + 123991.

It is an arithmetic number, because the mean of its divisors is an integer number (281250369).

Almost surely, 2^5615551606 is an apocalyptic number.

5615551606 is a deficient number, since it is larger than the sum of its proper divisors (4509461678).

5615551606 is a wasteful number, since it uses less digits than its factorization.

5615551606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59705 (or 59667 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 5615551606 is about 74936.9842334211. The cubic root of 5615551606 is about 1777.4503333230.

The spelling of 5615551606 in words is "five billion, six hundred fifteen million, five hundred fifty-one thousand, six hundred six".