220406162445 has 24 divisors (see below), whose sum is σ = 436614112896. Its totient is φ = 100757102688.

The previous prime is 220406162429. The next prime is 220406162461. The reversal of 220406162445 is 544261604022.

220406162445 is a `hidden beast` number, since 2 + 2 + 0 + 406 + 1 + 6 + 244 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (220406162429) and next prime (220406162461).

It is not a de Polignac number, because 220406162445 - 2⁴ = 220406162429 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 349850737 + ... + 349851366.

It is an arithmetic number, because the mean of its divisors is an integer number (18192254704).

Almost surely, 2^220406162445 is an apocalyptic number.

It is an amenable number.

220406162445 is a deficient number, since it is larger than the sum of its proper divisors (216207950451).

220406162445 is a wasteful number, since it uses less digits than its factorization.

220406162445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699702121 (or 699702118 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 220406162445 its reverse (544261604022), we get a palindrome (764667766467).

The spelling of 220406162445 in words is "two hundred twenty billion, four hundred six million, one hundred sixty-two thousand, four hundred forty-five".