666116036163435 has 64 divisors (see below), whose sum is σ = 1257307307536896. Its totient is φ = 296884841932800.

The previous prime is 666116036163377. The next prime is 666116036163443. The reversal of 666116036163435 is 534361630611666.

It is not a de Polignac number, because 666116036163435 - 2¹³ = 666116036155243 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 643764397 + ... + 644798286.

It is an arithmetic number, because the mean of its divisors is an integer number (19645426680264).

Almost surely, 2^{666116036163435} is an apocalyptic number.

666116036163435 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

666116036163435 is a deficient number, since it is larger than the sum of its proper divisors (591191271373461).

666116036163435 is a wasteful number, since it uses less digits than its factorization.

666116036163435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288562956.

The product of its (nonzero) digits is 25194240, while the sum is 57.

The spelling of 666116036163435 in words is "six hundred sixty-six trillion, one hundred sixteen billion, thirty-six million, one hundred sixty-three thousand, four hundred thirty-five".