6616105556 has 12 divisors (see below), whose sum is σ = 11580868992. Its totient is φ = 3307285848.

The previous prime is 6616105553. The next prime is 6616105571. The reversal of 6616105556 is 6555016166.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6616105553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172100 + ... + 207003.

It is an arithmetic number, because the mean of its divisors is an integer number (965072416).

Almost surely, 2^6616105556 is an apocalyptic number.

It is an amenable number.

6616105556 is a deficient number, since it is larger than the sum of its proper divisors (4964763436).

6616105556 is a wasteful number, since it uses less digits than its factorization.

6616105556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383470 (or 383468 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 6616105556 is about 81339.4464943056. The cubic root of 6616105556 is about 1877.3019956992.

The spelling of 6616105556 in words is "six billion, six hundred sixteen million, one hundred five thousand, five hundred fifty-six".