606042051065221 has 4 divisors (see below), whose sum is σ = 606078032917312. Its totient is φ = 606006069213132.

The previous prime is 606042051065131. The next prime is 606042051065279. The reversal of 606042051065221 is 122560150240606.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606042051065221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (606042051065291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17990900781 + ... + 17990934466.

It is an arithmetic number, because the mean of its divisors is an integer number (151519508229328).

Almost surely, 2^{606042051065221} is an apocalyptic number.

It is an amenable number.

606042051065221 is a deficient number, since it is larger than the sum of its proper divisors (35981852091).

606042051065221 is a wasteful number, since it uses less digits than its factorization.

606042051065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35981852090.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 606042051065221 in words is "six hundred six trillion, forty-two billion, fifty-one million, sixty-five thousand, two hundred twenty-one".