6645611083 has 8 divisors (see below), whose sum is σ = 7044269760. Its totient is φ = 6247812480.

The previous prime is 6645611069. The next prime is 6645611131. The reversal of 6645611083 is 3801165466.

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

It is a cyclic number.

It is not a de Polignac number, because 6645611083 - 2⁵ = 6645611051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6645641083) 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, 199068 + ... + 230041.

It is an arithmetic number, because the mean of its divisors is an integer number (880533720).

Almost surely, 2^6645611083 is an apocalyptic number.

6645611083 is a deficient number, since it is larger than the sum of its proper divisors (398658677).

6645611083 is a wasteful number, since it uses less digits than its factorization.

6645611083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430037.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 6645611083 is about 81520.6175332351. The cubic root of 6645611083 is about 1880.0885618270.

The spelling of 6645611083 in words is "six billion, six hundred forty-five million, six hundred eleven thousand, eighty-three".