76666020250 has 32 divisors (see below), whose sum is σ = 143699237136. Its totient is φ = 30627851200.

The previous prime is 76666020241. The next prime is 76666020251. The reversal of 76666020250 is 5202066667.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5345510769 + 71320509481 = 73113^2 + 267059^2 .

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 15 ways as a sum of consecutive naturals, for example, 6864 + ... + 391636.

Almost surely, 2^76666020250 is an apocalyptic number.

76666020250 is a deficient number, since it is larger than the sum of its proper divisors (67033216886).

76666020250 is a wasteful number, since it uses less digits than its factorization.

76666020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385587 (or 385577 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 76666020250 in words is "seventy-six billion, six hundred sixty-six million, twenty thousand, two hundred fifty".