1660477395179 has 2 divisors, whose sum is σ = 1660477395180. Its totient is φ = 1660477395178.

The previous prime is 1660477395173. The next prime is 1660477395197. The reversal of 1660477395179 is 9715937740661.

Together with next prime (1660477395197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (9715937740661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1660477395179 - 2⁴ = 1660477395163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1660477395173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830238697589 + 830238697590.

It is an arithmetic number, because the mean of its divisors is an integer number (830238697590).

Almost surely, 2^{1660477395179} is an apocalyptic number.

1660477395179 is a deficient number, since it is larger than the sum of its proper divisors (1).

1660477395179 is an equidigital number, since it uses as much as digits as its factorization.

1660477395179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60011280, while the sum is 65.

The spelling of 1660477395179 in words is "one trillion, six hundred sixty billion, four hundred seventy-seven million, three hundred ninety-five thousand, one hundred seventy-nine".