670077245221 has 2 divisors, whose sum is σ = 670077245222. Its totient is φ = 670077245220.

The previous prime is 670077245203. The next prime is 670077245237. The reversal of 670077245221 is 122542770076.

670077245221 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 can be written as a sum of positive squares in only one way, i.e., 606630688225 + 63446556996 = 778865^2 + 251886^2 .

It is a cyclic number.

It is not a de Polignac number, because 670077245221 - 2¹⁹ = 670076720933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670077242221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335038622610 + 335038622611.

It is an arithmetic number, because the mean of its divisors is an integer number (335038622611).

Almost surely, 2^670077245221 is an apocalyptic number.

It is an amenable number.

670077245221 is a deficient number, since it is larger than the sum of its proper divisors (1).

670077245221 is an equidigital number, since it uses as much as digits as its factorization.

670077245221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 670077245221 in words is "six hundred seventy billion, seventy-seven million, two hundred forty-five thousand, two hundred twenty-one".