6616045545 has 8 divisors (see below), whose sum is σ = 10585672896. Its totient is φ = 3528557616.

The previous prime is 6616045531. The next prime is 6616045547. The reversal of 6616045545 is 5455406166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6616045545 - 2²⁴ = 6599268329 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6616045497 and 6616045506.

It is not an unprimeable number, because it can be changed into a prime (6616045547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220534837 + ... + 220534866.

It is an arithmetic number, because the mean of its divisors is an integer number (1323209112).

Almost surely, 2^6616045545 is an apocalyptic number.

It is an amenable number.

6616045545 is a deficient number, since it is larger than the sum of its proper divisors (3969627351).

6616045545 is a wasteful number, since it uses less digits than its factorization.

6616045545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441069711.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 6616045545 is about 81339.0776011137. The cubic root of 6616045545 is about 1877.2963196959.

The spelling of 6616045545 in words is "six billion, six hundred sixteen million, forty-five thousand, five hundred forty-five".