220620033257 has 8 divisors (see below), whose sum is σ = 247920840384. Its totient is φ = 194794945488.

The previous prime is 220620033253. The next prime is 220620033269. The reversal of 220620033257 is 752330026022.

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

It is not a de Polignac number, because 220620033257 - 2² = 220620033253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220620033251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368929523 + ... + 368930120.

It is an arithmetic number, because the mean of its divisors is an integer number (30990105048).

Almost surely, 2^220620033257 is an apocalyptic number.

It is an amenable number.

220620033257 is a deficient number, since it is larger than the sum of its proper divisors (27300807127).

220620033257 is a wasteful number, since it uses less digits than its factorization.

220620033257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737859679.

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 220620033257 its reverse (752330026022), we get a palindrome (972950059279).

The spelling of 220620033257 in words is "two hundred twenty billion, six hundred twenty million, thirty-three thousand, two hundred fifty-seven".