4066356186881 has 4 divisors (see below), whose sum is σ = 4066428625200. Its totient is φ = 4066283748564.

The previous prime is 4066356186839. The next prime is 4066356186887. The reversal of 4066356186881 is 1886816536604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4066356186881 is a prime.

It is a super-2 number, since 2×4066356186881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4066356186887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36134891 + ... + 36247248.

It is an arithmetic number, because the mean of its divisors is an integer number (1016607156300).

Almost surely, 2^{4066356186881} is an apocalyptic number.

It is an amenable number.

4066356186881 is a deficient number, since it is larger than the sum of its proper divisors (72438319).

4066356186881 is an equidigital number, since it uses as much as digits as its factorization.

4066356186881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72438318.

The product of its (nonzero) digits is 39813120, while the sum is 62.

The spelling of 4066356186881 in words is "four trillion, sixty-six billion, three hundred fifty-six million, one hundred eighty-six thousand, eight hundred eighty-one".