76666020256 has 48 divisors (see below), whose sum is σ = 174081156480. Its totient is φ = 32555416320.

The previous prime is 76666020251. The next prime is 76666020293. The reversal of 76666020256 is 65202066667.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (76666020251) 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, 1545580 + ... + 1594411.

It is an arithmetic number, because the mean of its divisors is an integer number (3626690760).

Almost surely, 2^76666020256 is an apocalyptic number.

It is an amenable number.

76666020256 is an abundant number, since it is smaller than the sum of its proper divisors (97415136224).

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

76666020256 is a wasteful number, since it uses less digits than its factorization.

76666020256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140117 (or 3140109 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 76666020256 in words is "seventy-six billion, six hundred sixty-six million, twenty thousand, two hundred fifty-six".