220407127729 has 16 divisors (see below), whose sum is σ = 223988768640. Its totient is φ = 216849249280.

The previous prime is 220407127693. The next prime is 220407127813. The reversal of 220407127729 is 927721704022.

It is a cyclic number.

It is not a de Polignac number, because 220407127729 - 2¹⁹ = 220406603441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220407127229) 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, 23743569 + ... + 23752849.

It is an arithmetic number, because the mean of its divisors is an integer number (13999298040).

Almost surely, 2^220407127729 is an apocalyptic number.

It is an amenable number.

220407127729 is a deficient number, since it is larger than the sum of its proper divisors (3581640911).

220407127729 is an equidigital number, since it uses as much as digits as its factorization.

220407127729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 220407127729 in words is "two hundred twenty billion, four hundred seven million, one hundred twenty-seven thousand, seven hundred twenty-nine".