807663666038 has 32 divisors (see below), whose sum is σ = 1350998870400. Its totient is φ = 359879566464.

The previous prime is 807663666031. The next prime is 807663666053. The reversal of 807663666038 is 830666366708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (807663666031) 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, 871253 + ... + 1540911.

It is an arithmetic number, because the mean of its divisors is an integer number (42218714700).

Almost surely, 2^807663666038 is an apocalyptic number.

807663666038 is a deficient number, since it is larger than the sum of its proper divisors (543335204362).

807663666038 is a wasteful number, since it uses less digits than its factorization.

807663666038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671564.

The product of its (nonzero) digits is 31352832, while the sum is 59.

The spelling of 807663666038 in words is "eight hundred seven billion, six hundred sixty-three million, six hundred sixty-six thousand, thirty-eight".