620223001633 has 4 divisors (see below), whose sum is σ = 621465934000. Its totient is φ = 618980069268.

The previous prime is 620223001627. The next prime is 620223001667. The reversal of 620223001633 is 336100322026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620223001633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620223007633) 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, 621465435 + ... + 621466432.

It is an arithmetic number, because the mean of its divisors is an integer number (155366483500).

Almost surely, 2^620223001633 is an apocalyptic number.

It is an amenable number.

620223001633 is a deficient number, since it is larger than the sum of its proper divisors (1242932367).

620223001633 is a wasteful number, since it uses less digits than its factorization.

620223001633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242932366.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 620223001633 its reverse (336100322026), we get a palindrome (956323323659).

The spelling of 620223001633 in words is "six hundred twenty billion, two hundred twenty-three million, one thousand, six hundred thirty-three".