6506777266 has 16 divisors (see below), whose sum is σ = 10757224800. Its totient is φ = 2927134080.

The previous prime is 6506777231. The next prime is 6506777287. The reversal of 6506777266 is 6627776056.

It is a happy number.

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, 1522416 + ... + 1526683.

It is an arithmetic number, because the mean of its divisors is an integer number (672326550).

Almost surely, 2^6506777266 is an apocalyptic number.

6506777266 is a deficient number, since it is larger than the sum of its proper divisors (4250447534).

6506777266 is a wasteful number, since it uses less digits than its factorization.

6506777266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049209.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The square root of 6506777266 is about 80664.5973522462. The cubic root of 6506777266 is about 1866.9039741597.

The spelling of 6506777266 in words is "six billion, five hundred six million, seven hundred seventy-seven thousand, two hundred sixty-six".