6665307445 has 16 divisors (see below), whose sum is σ = 8439480000. Its totient is φ = 5039515008.

The previous prime is 6665307431. The next prime is 6665307479. The reversal of 6665307445 is 5447035666.

It is not a de Polignac number, because 6665307445 - 2⁹ = 6665306933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6665307395 and 6665307404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43920 + ... + 123529.

It is an arithmetic number, because the mean of its divisors is an integer number (527467500).

Almost surely, 2^6665307445 is an apocalyptic number.

It is an amenable number.

6665307445 is a deficient number, since it is larger than the sum of its proper divisors (1774172555).

6665307445 is a wasteful number, since it uses less digits than its factorization.

6665307445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167892.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The square root of 6665307445 is about 81641.3341696472. The cubic root of 6665307445 is about 1881.9441414124.

The spelling of 6665307445 in words is "six billion, six hundred sixty-five million, three hundred seven thousand, four hundred forty-five".