166420463 has 16 divisors (see below), whose sum is σ = 192658176. Its totient is φ = 142074240.

The previous prime is 166420453. The next prime is 166420469. The reversal of 166420463 is 364024661.

It is not a de Polignac number, because 166420463 - 2¹⁴ = 166404079 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 (166420469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127070 + ... + 128372.

It is an arithmetic number, because the mean of its divisors is an integer number (12041136).

Almost surely, 2^166420463 is an apocalyptic number.

166420463 is a deficient number, since it is larger than the sum of its proper divisors (26237713).

166420463 is a wasteful number, since it uses less digits than its factorization.

166420463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 166420463 is about 12900.4055362613. The cubic root of 166420463 is about 550.0500924073.

The spelling of 166420463 in words is "one hundred sixty-six million, four hundred twenty thousand, four hundred sixty-three".