1420664163 has 8 divisors (see below), whose sum is σ = 1894432848. Its totient is φ = 947002464.

The previous prime is 1420664129. The next prime is 1420664221. The reversal of 1420664163 is 3614660241.

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

It is not a de Polignac number, because 1420664163 - 2¹⁴ = 1420647779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420664263) 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 7 ways as a sum of consecutive naturals, for example, 12445 + ... + 54737.

It is an arithmetic number, because the mean of its divisors is an integer number (236804106).

Almost surely, 2^1420664163 is an apocalyptic number.

1420664163 is a deficient number, since it is larger than the sum of its proper divisors (473768685).

1420664163 is a wasteful number, since it uses less digits than its factorization.

1420664163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53493.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1420664163 is about 37691.6988606245. The cubic root of 1420664163 is about 1124.1660751279.

The spelling of 1420664163 in words is "one billion, four hundred twenty million, six hundred sixty-four thousand, one hundred sixty-three".