1660503134399 has 8 divisors (see below), whose sum is σ = 1687832516448. Its totient is φ = 1633177236960.

The previous prime is 1660503134377. The next prime is 1660503134401. The reversal of 1660503134399 is 9934313050661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660503134399 - 2¹² = 1660503130303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660503134309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98549 + ... + 1825025.

It is an arithmetic number, because the mean of its divisors is an integer number (210979064556).

Almost surely, 2^{1660503134399} is an apocalyptic number.

1660503134399 is a deficient number, since it is larger than the sum of its proper divisors (27329382049).

1660503134399 is a wasteful number, since it uses less digits than its factorization.

1660503134399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742305.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 1660503134399 in words is "one trillion, six hundred sixty billion, five hundred three million, one hundred thirty-four thousand, three hundred ninety-nine".