766632255637156 has 6 divisors (see below), whose sum is σ = 1341606447365030. Its totient is φ = 383316127818576.

The previous prime is 766632255637133. The next prime is 766632255637219. The reversal of 766632255637156 is 651736552236667.

It can be written as a sum of positive squares in only one way, i.e., 501132279648256 + 265499975988900 = 22385984^2 + 16294170^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95829031954641 + ... + 95829031954648.

Almost surely, 2^{766632255637156} is an apocalyptic number.

It is an amenable number.

766632255637156 is a deficient number, since it is larger than the sum of its proper divisors (574974191727874).

766632255637156 is a wasteful number, since it uses less digits than its factorization.

766632255637156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191658063909293 (or 191658063909291 counting only the distinct ones).

The product of its digits is 1714608000, while the sum is 70.

The spelling of 766632255637156 in words is "seven hundred sixty-six trillion, six hundred thirty-two billion, two hundred fifty-five million, six hundred thirty-seven thousand, one hundred fifty-six".