97143236766 has 32 divisors (see below), whose sum is σ = 220466926080. Its totient is φ = 31692118968.

The previous prime is 97143236761. The next prime is 97143236791. The reversal of 97143236766 is 66763234179.

It is a happy number.

97143236766 is a `hidden beast` number, since 97 + 1 + 432 + 3 + 67 + 66 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97143236761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19135216 + ... + 19140291.

It is an arithmetic number, because the mean of its divisors is an integer number (6889591440).

Almost surely, 2^97143236766 is an apocalyptic number.

97143236766 is an abundant number, since it is smaller than the sum of its proper divisors (123323689314).

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

97143236766 is a wasteful number, since it uses less digits than its factorization.

97143236766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38275565 (or 38275559 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 54.

The spelling of 97143236766 in words is "ninety-seven billion, one hundred forty-three million, two hundred thirty-six thousand, seven hundred sixty-six".