6653117378 has 8 divisors (see below), whose sum is σ = 10143277500. Its totient is φ = 3272024880.

The previous prime is 6653117363. The next prime is 6653117381. The reversal of 6653117378 is 8737113566.

It can be written as a sum of positive squares in 2 ways, for example, as 6631984969 + 21132409 = 81437^2 + 4597^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27266753 + ... + 27266996.

Almost surely, 2^6653117378 is an apocalyptic number.

6653117378 is a deficient number, since it is larger than the sum of its proper divisors (3490160122).

6653117378 is a wasteful number, since it uses less digits than its factorization.

6653117378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54533812.

The product of its digits is 635040, while the sum is 47.

The square root of 6653117378 is about 81566.6437828602. The cubic root of 6653117378 is about 1880.7961561132.

The spelling of 6653117378 in words is "six billion, six hundred fifty-three million, one hundred seventeen thousand, three hundred seventy-eight".