41620871655523 has 2 divisors, whose sum is σ = 41620871655524. Its totient is φ = 41620871655522.

The previous prime is 41620871655521. The next prime is 41620871655577. The reversal of 41620871655523 is 32555617802614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41620871655523 - 2¹ = 41620871655521 is a prime.

Together with 41620871655521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41620871655521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20810435827761 + 20810435827762.

It is an arithmetic number, because the mean of its divisors is an integer number (20810435827762).

Almost surely, 2^{41620871655523} is an apocalyptic number.

41620871655523 is a deficient number, since it is larger than the sum of its proper divisors (1).

41620871655523 is an equidigital number, since it uses as much as digits as its factorization.

41620871655523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 41620871655523 in words is "forty-one trillion, six hundred twenty billion, eight hundred seventy-one million, six hundred fifty-five thousand, five hundred twenty-three".