6605260258378 has 4 divisors (see below), whose sum is σ = 9907890387570. Its totient is φ = 3302630129188.

The previous prime is 6605260258327. The next prime is 6605260258423. The reversal of 6605260258378 is 8738520625066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5404774083489 + 1200486174889 = 2324817^2 + 1095667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651315064593 + ... + 1651315064596.

Almost surely, 2^{6605260258378} is an apocalyptic number.

6605260258378 is a deficient number, since it is larger than the sum of its proper divisors (3302630129192).

6605260258378 is a wasteful number, since it uses less digits than its factorization.

6605260258378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302630129191.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 6605260258378 in words is "six trillion, six hundred five billion, two hundred sixty million, two hundred fifty-eight thousand, three hundred seventy-eight".