661118483 has 2 divisors, whose sum is σ = 661118484. Its totient is φ = 661118482.

The previous prime is 661118473. The next prime is 661118501. The reversal of 661118483 is 384811166.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 661118483 - 2⁴ = 661118467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (661118443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330559241 + 330559242.

It is an arithmetic number, because the mean of its divisors is an integer number (330559242).

Almost surely, 2^661118483 is an apocalyptic number.

661118483 is a deficient number, since it is larger than the sum of its proper divisors (1).

661118483 is an equidigital number, since it uses as much as digits as its factorization.

661118483 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 661118483 is about 25712.2243884111. The cubic root of 661118483 is about 871.1503183343.

The spelling of 661118483 in words is "six hundred sixty-one million, one hundred eighteen thousand, four hundred eighty-three".