220612144643 has 16 divisors (see below), whose sum is σ = 255104640000. Its totient is φ = 188551708800.

The previous prime is 220612144637. The next prime is 220612144681. The reversal of 220612144643 is 346441216022.

It is a cyclic number.

It is not a de Polignac number, because 220612144643 - 2⁸ = 220612144387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220612144603) 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 15 ways as a sum of consecutive naturals, for example, 477143 + ... + 817856.

It is an arithmetic number, because the mean of its divisors is an integer number (15944040000).

Almost surely, 2^220612144643 is an apocalyptic number.

220612144643 is a deficient number, since it is larger than the sum of its proper divisors (34492495357).

220612144643 is a wasteful number, since it uses less digits than its factorization.

220612144643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295938.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 220612144643 in words is "two hundred twenty billion, six hundred twelve million, one hundred forty-four thousand, six hundred forty-three".