6442653266 has 32 divisors (see below), whose sum is σ = 11641681920. Its totient is φ = 2612250000.

The previous prime is 6442653233. The next prime is 6442653271. The reversal of 6442653266 is 6623562446.

It is a super-2 number, since 2×6442653266² = 83015562211800933512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183641 + ... + 215891.

It is an arithmetic number, because the mean of its divisors is an integer number (363802560).

Almost surely, 2^6442653266 is an apocalyptic number.

6442653266 is a deficient number, since it is larger than the sum of its proper divisors (5199028654).

6442653266 is a wasteful number, since it uses less digits than its factorization.

6442653266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33030.

The product of its digits is 1244160, while the sum is 44.

The square root of 6442653266 is about 80266.1402211418. The cubic root of 6442653266 is about 1860.7509653083.

The spelling of 6442653266 in words is "six billion, four hundred forty-two million, six hundred fifty-three thousand, two hundred sixty-six".