6620154041 has 2 divisors, whose sum is σ = 6620154042. Its totient is φ = 6620154040.

The previous prime is 6620154029. The next prime is 6620154043. The reversal of 6620154041 is 1404510266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4475074816 + 2145079225 = 66896^2 + 46315^2 .

It is a cyclic number.

It is not a de Polignac number, because 6620154041 - 2³⁰ = 5546412217 is a prime.

Together with 6620154043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6620153995 and 6620154013.

It is not a weakly prime, because it can be changed into another prime (6620154043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3310077020 + 3310077021.

It is an arithmetic number, because the mean of its divisors is an integer number (3310077021).

Almost surely, 2^6620154041 is an apocalyptic number.

It is an amenable number.

6620154041 is a deficient number, since it is larger than the sum of its proper divisors (1).

6620154041 is an equidigital number, since it uses as much as digits as its factorization.

6620154041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 6620154041 is about 81364.3290453501. The cubic root of 6620154041 is about 1877.6848331658.

The spelling of 6620154041 in words is "six billion, six hundred twenty million, one hundred fifty-four thousand, forty-one".