220051445351 has 4 divisors (see below), whose sum is σ = 227149879104. Its totient is φ = 212953011600.

The previous prime is 220051445309. The next prime is 220051445359. The reversal of 220051445351 is 153544150022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220051445351 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 (220051445359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3549216830 + ... + 3549216891.

It is an arithmetic number, because the mean of its divisors is an integer number (56787469776).

Almost surely, 2^220051445351 is an apocalyptic number.

220051445351 is a deficient number, since it is larger than the sum of its proper divisors (7098433753).

220051445351 is an equidigital number, since it uses as much as digits as its factorization.

220051445351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098433752.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 220051445351 its reverse (153544150022), we get a palindrome (373595595373).

The spelling of 220051445351 in words is "two hundred twenty billion, fifty-one million, four hundred forty-five thousand, three hundred fifty-one".