660934097077 has 2 divisors, whose sum is σ = 660934097078. Its totient is φ = 660934097076.

The previous prime is 660934097069. The next prime is 660934097167. The reversal of 660934097077 is 770790439066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513058470961 + 147875626116 = 716281^2 + 384546^2 .

It is a cyclic number.

It is not a de Polignac number, because 660934097077 - 2³ = 660934097069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660934097177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330467048538 + 330467048539.

It is an arithmetic number, because the mean of its divisors is an integer number (330467048539).

Almost surely, 2^660934097077 is an apocalyptic number.

It is an amenable number.

660934097077 is a deficient number, since it is larger than the sum of its proper divisors (1).

660934097077 is an equidigital number, since it uses as much as digits as its factorization.

660934097077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12002256, while the sum is 58.

The spelling of 660934097077 in words is "six hundred sixty billion, nine hundred thirty-four million, ninety-seven thousand, seventy-seven".