620644072601 has 8 divisors (see below), whose sum is σ = 709472924160. Its totient is φ = 531856574208.

The previous prime is 620644072591. The next prime is 620644072619. The reversal of 620644072601 is 106270446026.

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

It is a cyclic number.

It is not a de Polignac number, because 620644072601 - 2²² = 620639878297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (620644072661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10306121 + ... + 10366166.

It is an arithmetic number, because the mean of its divisors is an integer number (88684115520).

Almost surely, 2^620644072601 is an apocalyptic number.

It is an amenable number.

620644072601 is a deficient number, since it is larger than the sum of its proper divisors (88828851559).

620644072601 is a wasteful number, since it uses less digits than its factorization.

620644072601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20676583.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 620644072601 in words is "six hundred twenty billion, six hundred forty-four million, seventy-two thousand, six hundred one".