4645166421 has 16 divisors (see below), whose sum is σ = 7083137664. Its totient is φ = 2652585024.

The previous prime is 4645166399. The next prime is 4645166453. The reversal of 4645166421 is 1246615464.

It is not a de Polignac number, because 4645166421 - 2¹¹ = 4645164373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4645166421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645166621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42726 + ... + 105431.

It is an arithmetic number, because the mean of its divisors is an integer number (442696104).

Almost surely, 2^4645166421 is an apocalyptic number.

It is an amenable number.

4645166421 is a deficient number, since it is larger than the sum of its proper divisors (2437971243).

4645166421 is a wasteful number, since it uses less digits than its factorization.

4645166421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149660.

The product of its digits is 138240, while the sum is 39.

The square root of 4645166421 is about 68155.4577491781. The cubic root of 4645166421 is about 1668.5289998850.

The spelling of 4645166421 in words is "four billion, six hundred forty-five million, one hundred sixty-six thousand, four hundred twenty-one".