6445057105 has 8 divisors (see below), whose sum is σ = 7735133952. Its totient is φ = 5155335408.

The previous prime is 6445057097. The next prime is 6445057109. The reversal of 6445057105 is 5017505446.

It is a happy number.

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 6445057105 - 2³ = 6445057097 is a prime.

It is a super-2 number, since 2×6445057105² = 83077522173421962050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6445057109) 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, 47079 + ... + 122908.

It is an arithmetic number, because the mean of its divisors is an integer number (966891744).

Almost surely, 2^6445057105 is an apocalyptic number.

It is an amenable number.

6445057105 is a deficient number, since it is larger than the sum of its proper divisors (1290076847).

6445057105 is a wasteful number, since it uses less digits than its factorization.

6445057105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177575.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 6445057105 is about 80281.1130029972. The cubic root of 6445057105 is about 1860.9823601165.

The spelling of 6445057105 in words is "six billion, four hundred forty-five million, fifty-seven thousand, one hundred five".