60421556099 has 2 divisors, whose sum is σ = 60421556100. Its totient is φ = 60421556098.

The previous prime is 60421556003. The next prime is 60421556101. The reversal of 60421556099 is 99065512406.

60421556099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60421556099 is a prime.

It is a Sophie Germain prime.

Together with 60421556101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60421556599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30210778049 + 30210778050.

It is an arithmetic number, because the mean of its divisors is an integer number (30210778050).

Almost surely, 2^60421556099 is an apocalyptic number.

60421556099 is a deficient number, since it is larger than the sum of its proper divisors (1).

60421556099 is an equidigital number, since it uses as much as digits as its factorization.

60421556099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 60421556099 in words is "sixty billion, four hundred twenty-one million, five hundred fifty-six thousand, ninety-nine".