6775669440 has 140 divisors (see below), whose sum is σ = 24102340416. Its totient is φ = 1806838272.

The previous prime is 6775669427. The next prime is 6775669441. The reversal of 6775669440 is 449665776.

6775669440 is a `hidden beast` number, since 6 + 77 + 566 + 9 + 4 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6775669441) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104784 + ... + 156623.

Almost surely, 2^6775669440 is an apocalyptic number.

6775669440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6775669440 is an abundant number, since it is smaller than the sum of its proper divisors (17326670976).

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

6775669440 is a wasteful number, since it uses less digits than its factorization.

6775669440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261436 (or 261417 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The square root of 6775669440 is about 82314.4546237172. The cubic root of 6775669440 is about 1892.2742087152.

The spelling of 6775669440 in words is "six billion, seven hundred seventy-five million, six hundred sixty-nine thousand, four hundred forty".