4021666343063 has 8 divisors (see below), whose sum is σ = 4028160581376. Its totient is φ = 4015173132000.

The previous prime is 4021666343059. The next prime is 4021666343083. The reversal of 4021666343063 is 3603436661204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4021666343063 - 2² = 4021666343059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021666343033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7782218 + ... + 8282888.

It is an arithmetic number, because the mean of its divisors is an integer number (503520072672).

Almost surely, 2^{4021666343063} is an apocalyptic number.

4021666343063 is a deficient number, since it is larger than the sum of its proper divisors (6494238313).

4021666343063 is a wasteful number, since it uses less digits than its factorization.

4021666343063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513625.

The product of its (nonzero) digits is 1119744, while the sum is 44.

The spelling of 4021666343063 in words is "four trillion, twenty-one billion, six hundred sixty-six million, three hundred forty-three thousand, sixty-three".