800126656 has 56 divisors (see below), whose sum is σ = 1817319200. Its totient is φ = 342392832.

The previous prime is 800126629. The next prime is 800126659. The reversal of 800126656 is 656621008.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (800126659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515770 + ... + 517318.

Almost surely, 2^800126656 is an apocalyptic number.

It is an amenable number.

800126656 is an abundant number, since it is smaller than the sum of its proper divisors (1017192544).

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

800126656 is a wasteful number, since it uses less digits than its factorization.

800126656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 800126656 is about 28286.5101417619. The cubic root of 800126656 is about 928.3667545603.

It can be divided in two parts, 80012 and 6656, that added together give a palindrome (86668).

The spelling of 800126656 in words is "eight hundred million, one hundred twenty-six thousand, six hundred fifty-six".