60221618357 has 2 divisors, whose sum is σ = 60221618358. Its totient is φ = 60221618356.

The previous prime is 60221618351. The next prime is 60221618389. The reversal of 60221618357 is 75381612206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31669405681 + 28552212676 = 177959^2 + 168974^2 .

It is a cyclic number.

It is not a de Polignac number, because 60221618357 - 2¹² = 60221614261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60221618351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30110809178 + 30110809179.

It is an arithmetic number, because the mean of its divisors is an integer number (30110809179).

Almost surely, 2^60221618357 is an apocalyptic number.

It is an amenable number.

60221618357 is a deficient number, since it is larger than the sum of its proper divisors (1).

60221618357 is an equidigital number, since it uses as much as digits as its factorization.

60221618357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 60221618357 in words is "sixty billion, two hundred twenty-one million, six hundred eighteen thousand, three hundred fifty-seven".