661083318846703 has 2 divisors, whose sum is σ = 661083318846704. Its totient is φ = 661083318846702.

The previous prime is 661083318846697. The next prime is 661083318846737. The reversal of 661083318846703 is 307648813380166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 661083318846703 - 2¹³ = 661083318838511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (661083318846403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330541659423351 + 330541659423352.

It is an arithmetic number, because the mean of its divisors is an integer number (330541659423352).

Almost surely, 2^{661083318846703} is an apocalyptic number.

661083318846703 is a deficient number, since it is larger than the sum of its proper divisors (1).

661083318846703 is an equidigital number, since it uses as much as digits as its factorization.

661083318846703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83607552, while the sum is 64.

The spelling of 661083318846703 in words is "six hundred sixty-one trillion, eighty-three billion, three hundred eighteen million, eight hundred forty-six thousand, seven hundred three".