1660431066203 has 32 divisors (see below), whose sum is σ = 2167186162176. Its totient is φ = 1234544675328.

The previous prime is 1660431066149. The next prime is 1660431066257. The reversal of 1660431066203 is 3026601340661.

It is an interprime number because it is at equal distance from previous prime (1660431066149) and next prime (1660431066257).

It is a cyclic number.

It is not a de Polignac number, because 1660431066203 - 2⁸ = 1660431065947 is a prime.

It is a super-2 number, since 2×1660431066203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1660431060203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160100 + ... + 1829342.

It is an arithmetic number, because the mean of its divisors is an integer number (67724567568).

Almost surely, 2^{1660431066203} is an apocalyptic number.

1660431066203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1660431066203 is a deficient number, since it is larger than the sum of its proper divisors (506755095973).

1660431066203 is a wasteful number, since it uses less digits than its factorization.

1660431066203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669923.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 1660431066203 in words is "one trillion, six hundred sixty billion, four hundred thirty-one million, sixty-six thousand, two hundred three".