420444223552345 has 8 divisors (see below), whose sum is σ = 505013118762240. Its totient is φ = 336035345175600.

The previous prime is 420444223552303. The next prime is 420444223552411. The reversal of 420444223552345 is 543255322444024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420444223552345 - 2²⁵ = 420444189997913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40004202505 + ... + 40004213014.

It is an arithmetic number, because the mean of its divisors is an integer number (63126639845280).

Almost surely, 2^{420444223552345} is an apocalyptic number.

It is an amenable number.

420444223552345 is a deficient number, since it is larger than the sum of its proper divisors (84568895209895).

420444223552345 is a wasteful number, since it uses less digits than its factorization.

420444223552345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80008416575.

The product of its (nonzero) digits is 18432000, while the sum is 49.

Adding to 420444223552345 its reverse (543255322444024), we get a palindrome (963699545996369).

The spelling of 420444223552345 in words is "four hundred twenty trillion, four hundred forty-four billion, two hundred twenty-three million, five hundred fifty-two thousand, three hundred forty-five".