6655026440 has 32 divisors (see below), whose sum is σ = 15128187480. Its totient is φ = 2634565632.

The previous prime is 6655026337. The next prime is 6655026487. The reversal of 6655026440 is 446205566.

It can be written as a sum of positive squares in 4 ways, for example, as 2920105444 + 3734920996 = 54038^2 + 61114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6655026394 and 6655026403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853727 + ... + 861486.

Almost surely, 2^6655026440 is an apocalyptic number.

It is an amenable number.

6655026440 is an abundant number, since it is smaller than the sum of its proper divisors (8473161040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6655026440 is a wasteful number, since it uses less digits than its factorization.

6655026440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715321 (or 1715317 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 6655026440 is about 81578.3454110219. The cubic root of 6655026440 is about 1880.9760323474.

The spelling of 6655026440 in words is "six billion, six hundred fifty-five million, twenty-six thousand, four hundred forty".