766651132243016 has 8 divisors (see below), whose sum is σ = 1437470872955670. Its totient is φ = 383325566121504.

The previous prime is 766651132242937. The next prime is 766651132243121. The reversal of 766651132243016 is 610342231156667.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 398799062762116 + 367852069480900 = 19969954^2 + 19179470^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47915695765181 + ... + 47915695765196.

Almost surely, 2^{766651132243016} is an apocalyptic number.

It is an amenable number.

766651132243016 is a deficient number, since it is larger than the sum of its proper divisors (670819740712654).

766651132243016 is a wasteful number, since it uses less digits than its factorization.

766651132243016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95831391530383 (or 95831391530379 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 766651132243016 in words is "seven hundred sixty-six trillion, six hundred fifty-one billion, one hundred thirty-two million, two hundred forty-three thousand, sixteen".