76664233020 has 192 divisors, whose sum is σ = 225402186240. Its totient is φ = 19451830272.

The previous prime is 76664233003. The next prime is 76664233021. The reversal of 76664233020 is 2033246667.

It is a self number, because there is not a number n which added to its sum of digits gives 76664233020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76664233021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17198632 + ... + 17203088.

It is an arithmetic number, because the mean of its divisors is an integer number (1173969720).

Almost surely, 2^76664233020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76664233020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112701093120).

76664233020 is an abundant number, since it is smaller than the sum of its proper divisors (148737953220).

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

76664233020 is a wasteful number, since it uses less digits than its factorization.

76664233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4684 (or 4682 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 39.

Adding to 76664233020 its reverse (2033246667), we get a palindrome (78697479687).

The spelling of 76664233020 in words is "seventy-six billion, six hundred sixty-four million, two hundred thirty-three thousand, twenty".