620143547502601 has 2 divisors, whose sum is σ = 620143547502602. Its totient is φ = 620143547502600.

The previous prime is 620143547502599. The next prime is 620143547502607. The reversal of 620143547502601 is 106205745341026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618980762696976 + 1162784805625 = 24879324^2 + 1078325^2 .

It is a cyclic number.

It is not a de Polignac number, because 620143547502601 - 2¹ = 620143547502599 is a prime.

It is a super-2 number, since 2×620143547502601² (a number of 30 digits) contains 22 as substring.

Together with 620143547502599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (620143547502607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310071773751300 + 310071773751301.

It is an arithmetic number, because the mean of its divisors is an integer number (310071773751301).

Almost surely, 2^{620143547502601} is an apocalyptic number.

It is an amenable number.

620143547502601 is a deficient number, since it is larger than the sum of its proper divisors (1).

620143547502601 is an equidigital number, since it uses as much as digits as its factorization.

620143547502601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 620143547502601 in words is "six hundred twenty trillion, one hundred forty-three billion, five hundred forty-seven million, five hundred two thousand, six hundred one".